springMVC，hibernate，sitemesh，pagerlib整合
来源：互联网 发布：线切割编程要证明的 编辑：程序博客网 时间：2024/06/10 22:48
一、新建Dynamic Web Project:springmvc_hibernate
二、导入jar包
1.Spring4.0.6.RELEASE的所有包2.log4j的包3. Apache commons的部分包4.hibernate包5.spring的AOP包spring_aspectj6.JSTL的包7.sitemesh的包8.pager-taglib的包antlr-2.7.6.jaraopalliance-1.0.jaraspectj-1.8.10.jaraspectjrt.jaraspectjtools.jaraspectjweaver.jarbean-validator.jarcommons-collections-3.1.jarcommons-dbcp2-2.1.1.jarcommons-fileupload-1.3.3-sources.jarcommons-fileupload-1.3.3.jarcommons-io-2.5.jarcommons-logging-1.2.jarcommons-pool2-2.4.2.jardom4j-1.6.1.jarhibernate-jpa-2.0-api-1.0.1.Final.jarhibernate3.jarjavassist-3.12.0.GA.jarjstl.jarjta-1.1.jarlog4j-1.2.17.jarorg.aspectj.matcher.jarpager-taglib.jarsitemesh-2.4.2.jarslf4j-api-1.6.1.jarspring-aop-4.0.6.RELEASE-javadoc.jarspring-aop-4.0.6.RELEASE-sources.jarspring-aop-4.0.6.RELEASE.jarspring-aspects-4.0.6.RELEASE-javadoc.jarspring-aspects-4.0.6.RELEASE-sources.jarspring-aspects-4.0.6.RELEASE.jarspring-beans-4.0.6.RELEASE-javadoc.jarspring-beans-4.0.6.RELEASE-sources.jarspring-beans-4.0.6.RELEASE.jarspring-build-src-4.0.6.RELEASE.jarspring-context-4.0.6.RELEASE-javadoc.jarspring-context-4.0.6.RELEASE-sources.jarspring-context-4.0.6.RELEASE.jarspring-context-support-4.0.6.RELEASE-javadoc.jarspring-context-support-4.0.6.RELEASE-sources.jarspring-context-support-4.0.6.RELEASE.jarspring-core-4.0.6.RELEASE-javadoc.jarspring-core-4.0.6.RELEASE-sources.jarspring-core-4.0.6.RELEASE.jarspring-expression-4.0.6.RELEASE-javadoc.jarspring-expression-4.0.6.RELEASE-sources.jarspring-expression-4.0.6.RELEASE.jarspring-framework-bom-4.0.6.RELEASE-javadoc.jarspring-framework-bom-4.0.6.RELEASE-sources.jarspring-framework-bom-4.0.6.RELEASE.jarspring-instrument-4.0.6.RELEASE-javadoc.jarspring-instrument-4.0.6.RELEASE-sources.jarspring-instrument-4.0.6.RELEASE.jarspring-instrument-tomcat-4.0.6.RELEASE-javadoc.jarspring-instrument-tomcat-4.0.6.RELEASE-sources.jarspring-instrument-tomcat-4.0.6.RELEASE.jarspring-jdbc-4.0.6.RELEASE-javadoc.jarspring-jdbc-4.0.6.RELEASE-sources.jarspring-jdbc-4.0.6.RELEASE.jarspring-jms-4.0.6.RELEASE-javadoc.jarspring-jms-4.0.6.RELEASE-sources.jarspring-jms-4.0.6.RELEASE.jarspring-messaging-4.0.6.RELEASE-javadoc.jarspring-messaging-4.0.6.RELEASE-sources.jarspring-messaging-4.0.6.RELEASE.jarspring-orm-4.0.6.RELEASE-javadoc.jarspring-orm-4.0.6.RELEASE-sources.jarspring-orm-4.0.6.RELEASE.jarspring-oxm-4.0.6.RELEASE-javadoc.jarspring-oxm-4.0.6.RELEASE-sources.jarspring-oxm-4.0.6.RELEASE.jarspring-test-4.0.6.RELEASE-javadoc.jarspring-test-4.0.6.RELEASE-sources.jarspring-test-4.0.6.RELEASE.jarspring-tx-4.0.6.RELEASE-javadoc.jarspring-tx-4.0.6.RELEASE-sources.jarspring-tx-4.0.6.RELEASE.jarspring-web-4.0.6.RELEASE-javadoc.jarspring-web-4.0.6.RELEASE-sources.jarspring-web-4.0.6.RELEASE.jarspring-webmvc-4.0.6.RELEASE-javadoc.jarspring-webmvc-4.0.6.RELEASE-sources.jarspring-webmvc-4.0.6.RELEASE.jarspring-webmvc-portlet-4.0.6.RELEASE-javadoc.jarspring-webmvc-portlet-4.0.6.RELEASE-sources.jarspring-webmvc-portlet-4.0.6.RELEASE.jarspring-websocket-4.0.6.RELEASE-javadoc.jarspring-websocket-4.0.6.RELEASE-sources.jarspring-websocket-4.0.6.RELEASE.jarstandard.jartaglibs-standard-jstlel-1.2.5.jar三、配置工程
1.web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>springmvc_hibernate</display-name> <!-- 进行controller界面控制的dispatcher 设置 --> <servlet> <servlet-name>user</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>user</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 进行字符编码的Filter，必须在openSessionInViewerFilter之前，才能生效 --> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 启动spring的监听器,这样配置在xml文件中的bean才会初始化 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:beans*.xml</param-value> </context-param> <!-- 配合使用 Spring 的 HibernateDaoSupport 来进行开发，也就是说， 我们的dao层的类都要继承于 HibernateDaoSupport，从中由 Spring 来控制 Hibernate 的 Session 在请求来的时候开启， 走的时候关闭，保证了我们访问数据对象时的稳定性。 --> <filter> <filter-name>openSessionInViewerFilter</filter-name> <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class> <init-param> <param-name>sessionFactoryBeanName</param-name> <param-value>mySessionFactory</param-value> </init-param> </filter> <filter-mapping> <filter-name>openSessionInViewerFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 自定义分页参数Filter --> <filter> <filter-name>SystemContextFilter</filter-name> <filter-class>com.my.web.SystemContextFilter</filter-class> <init-param> <param-name>pageSize</param-name> <param-value>15</param-value> </init-param> </filter> <filter-mapping> <filter-name>SystemContextFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- sitemesh Filter --> <filter> <filter-name>sitemesh</filter-name> <filter-class>com.opensymphony.sitemesh.webapp.SiteMeshFilter</filter-class> </filter> <filter-mapping> <filter-name>sitemesh</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 登录验证Filter;Filter执行从上方向下方一层层过滤 --> <filter> <filter-name>LoginFilter</filter-name> <filter-class>com.my.web.LoginFilter</filter-class> </filter> <filter-mapping> <filter-name>LoginFilter</filter-name> <url-pattern>/user/*</url-pattern> </filter-mapping></web-app>2.与web.xml同目录的，对应servlet-name:user相同路径下创建user-servlet.xml
<?xml version="1.0"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 开启Annotation --> <mvc:annotation-driven /> <!-- Controller进行扫描的包 annotation --> <context:component-scan base-package="com.my.web"></context:component-scan> <!-- 将静态文件指定到某个特殊的文件夹中，进行统一处理 ; 第一个*表示文件夹中的内容，第二个*表示所有子文件夹--> <mvc:resources location="/resources/" mapping="/resources/**"/> <!-- 资源显示处理器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <!-- 查找页面的前缀；页面的位置=prefix+(function return String)+suffix --> <property name="prefix" value="/WEB-INF/jsp/"></property> <!-- 查找页面的后缀 --> <property name="suffix" value=".jsp"></property> </bean> <!-- 设置文件上传 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- one of the properties available; the maximum file size in bytes --> <property name="maxUploadSize" value="1000000"/> </bean> <!-- 全局异常处理 --> <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="exceptionMappings"> <props> <!-- error页面处理UserException异常 --> <prop key="com.my.model.UserException">error</prop> <prop key=" java.lang.NullPointerException">exception</prop> </props> </property> </bean></beans>与web.xml同目录的sitemesh的decorators.xml
<?xml version="1.0" encoding="UTF-8"?><!-- defaultdir 表明 decotaror 所在的文件夹 --><decorators defaultdir="/WEB-INF/decorators"> <!-- Any urls that are excluded will never be decorated by Sitemesh --> <excludes> <pattern>/exclude.jsp</pattern> <pattern>/exclude/*</pattern> </excludes> <!-- 修饰的页面 --> <decorator name="main" page="main.jsp"> <pattern>/*</pattern> </decorator></decorators>3.classpath目录src/下的bean.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <!-- 打开spring的Annotation的支持 --> <context:annotation-config/> <!-- 设置spring去那些包中找Annotation --> <context:component-scan base-package="com.my"></context:component-scan> <!-- Spring在第三方依赖包中包含了两个数据源的实现类包，其一是Apache的DBCP，其二是 C3P0。 --> <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 配置连接池的初始值 --> <property name="initialSize" value="1" /> <!-- 连接池的最大值 --> <!-- <property name="maxActive" value="500"/> --> <!-- 最大空闲时，当经过一个高峰之后，连接池可以将一些用不到的连接释放，一直减少到maxIdle为止 --> <!-- <property name="maxIdle" value="2"/> --> <!-- 当最小空闲时，当连接少于minIdle时会自动去申请一些连接 --> <property name="minIdle" value="1" /> <!-- <property name="maxActive" value="100" /> --> <property name="maxIdle" value="20" /> <property name="maxWaitMillis" value="1000" /> </bean> <!-- 导入jdbc.properties --> <context:property-placeholder location="classpath*:jdbc.properties"/> <!-- 如果使用的是Annotation的方式，不能使用LocalSessionFactoryBean, 而应该使用org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean --> <!-- 创建Spring的SessionFactory工厂 --> <bean id="mySessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> <!-- 注入数据源 --> <property name="dataSource" ref="dataSource"/> <!-- 设置spring去哪个包中查找相应的实体类 --> <property name="packagesToScan"> <value>com.my.model</value> </property> <property name="hibernateProperties"> <!-- <value> hibernate.dialect=org.hibernate.dialect.HSQLDialect </value> --> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> <prop key="hibernate.format_sql">false</prop> </props> </property> </bean> <!-- 创建HibernateTemplate，为其注入SessionFactor --> <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate"> <property name="sessionFactory" ref="mySessionFactory"></property> </bean> <!-- 配置Spring的事务管理 --> <!-- 创建事务管理器 --> <bean id="myTxManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="mySessionFactory"/> </bean> <!-- 配置AOP，Spring是通过AOP进行事务管理的 --> <aop:config> <!-- 设置pointcut，设置那些方法要加入事务处理, 在Service处理为事务 --> <aop:pointcut id="productServiceMethods" expression="execution(* com.my.service.*.*(..))"/> <!-- 通过 aop:advisor确定具体要加入事务控制的方法--> <aop:advisor advice-ref="txAdvice" pointcut-ref="productServiceMethods"/> </aop:config> <!-- 配置那些方法要加入事务控制 --> <tx:advice id="txAdvice" transaction-manager="myTxManager"> <tx:attributes> <!-- 让所有的方法都加入事务管理；为了提高效率，可以把一些查询之类的方法设置为只读的事务 --> <tx:method name="*" propagation="REQUIRED" read-only="true"/> <!-- 以下方法都是可能涉及修改数据的方法，就无法设置为只读 --> <tx:method name="add*" propagation="REQUIRED"/> <tx:method name="del*" propagation="REQUIRED"/> <tx:method name="update*" propagation="REQUIRED"/> <tx:method name="save*" propagation="REQUIRED"/> </tx:attributes> </tx:advice></beans>4.classpath下src/中的jdbc.properties
jdbc.driverClassName=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://localhost:3306/springmvc_hibernatejdbc.username=rootjdbc.password=XXXXXX5.src/中的log4j.properties
### direct log messages to stdout ###log4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.layout=org.apache.log4j.PatternLayoutlog4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n### direct messages to file hibernate.log ####log4j.appender.file=org.apache.log4j.FileAppender#log4j.appender.file.File=hibernate.log#log4j.appender.file.layout=org.apache.log4j.PatternLayout#log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n### set log levels - for more verbose logging change 'info' to 'debug' ###log4j.rootLogger=warn, stdout#log4j.logger.org.hibernate=info#log4j.logger.org.hibernate=debug### log HQL query parser activity#log4j.logger.org.hibernate.hql.ast.AST=debug### log just the SQLlog4j.logger.org.hibernate.SQL=debug### log JDBC bind parameters ####log4j.logger.org.hibernate.type=info#log4j.logger.org.hibernate.type=debug### log schema export/update ####log4j.logger.org.hibernate.tool.hbm2ddl=debug### log HQL parse trees#log4j.logger.org.hibernate.hql=debug### log cache activity ####log4j.logger.org.hibernate.cache=debug### log transaction activity#log4j.logger.org.hibernate.transaction=debug### log JDBC resource acquisition#log4j.logger.org.hibernate.jdbc=debug### enable the following line if you want to track down connection ###### leakages when using DriverManagerConnectionProvider ####log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace四、编写工程代码
1.创建model层，Entity的创建
User.java 【Entity】
package com.my.model;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.Id;import javax.persistence.Table;import org.hibernate.validator.constraints.Email;import org.hibernate.validator.constraints.NotEmpty;@Entity(name="User")@Table(name="t_user")public class User { private int id; private String username; private String password; private String nickname; private String email; @Id @GeneratedValue public int getId() { return id; } public void setId(int id) { this.id = id; } @NotEmpty(message="username is empty!") public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } @NotEmpty(message="password is empty!") public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } @NotEmpty(message="nickname is empty!") public String getNickname() { return nickname; } public void setNickname(String nickname) { this.nickname = nickname; } @Email(message="email format isn't right!") public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } @Override public String toString() { return "User [id=" + id + ", username=" + username + ", password=" + password + ", nickname=" + nickname + ", email=" + email + "]"; } public User(int id, String username, String password, String nickname, String email) { super(); this.id = id; this.username = username; this.password = password; this.nickname = nickname; this.email = email; } public User() { }}UserException.java 【项目异常类】
package com.my.model;public class UserException extends RuntimeException { public UserException() { super(); // TODO Auto-generated constructor stub } public UserException(String arg0, Throwable arg1, boolean arg2, boolean arg3) { super(arg0, arg1, arg2, arg3); // TODO Auto-generated constructor stub } public UserException(String arg0, Throwable arg1) { super(arg0, arg1); // TODO Auto-generated constructor stub } public UserException(String arg0) { super(arg0); // TODO Auto-generated constructor stub } public UserException(Throwable arg0) { super(arg0); // TODO Auto-generated constructor stub }}Pager.java 【分页处理类】
package com.my.model;import java.util.List;public class Pager<T> { private int offset; private int pageSize; private long totalRecord; private List<T> datas; public int getOffset() { return offset; } public void setOffset(int offset) { this.offset = offset; } public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public long getTotalRecord() { return totalRecord; } public void setTotalRecord(long totalRecord) { this.totalRecord = totalRecord; } public List<T> getDatas() { return datas; } public void setDatas(List<T> datas) { this.datas = datas; } public Pager(int offset, int pageSize, long totalRecord, List<T> datas) { super(); this.offset = offset; this.pageSize = pageSize; this.totalRecord = totalRecord; this.datas = datas; } public Pager() { }}SystemContext.java 【工程数据传输类，分页参数】
package com.my.model;public class SystemContext { private static ThreadLocal<Integer> pageOffset=new ThreadLocal<>(); private static ThreadLocal<Integer> pageSize=new ThreadLocal<>(); public static Integer getPageOffset() { return pageOffset.get(); } public static void setPageOffset(Integer data) { pageOffset.set(data); } public static void removePageOffset() { pageOffset.remove(); } public static Integer getPageSize() { return pageSize.get(); } public static void setPageSize(Integer data) { pageSize.set(data); } public static void removePageSize() { pageSize.remove(); }}2.com.my.dao 【数据库采集层】
IUserDao.java 【接口】
package com.my.dao;import java.util.List;import com.my.model.Pager;import com.my.model.User;public interface IUserDao { void add(User user); void update(User user); void delete(int id); User load(int id); User loadByUsername(String username); List<User> list(); Pager<User> find();}UserDao.java 【实体】
package com.my.dao;import java.util.List;import javax.annotation.Resource;import javax.management.Query;import org.hibernate.SessionFactory;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;import org.springframework.stereotype.Repository;import com.my.model.Pager;import com.my.model.SystemContext;import com.my.model.User;import com.my.util.LogUtil;@Repository("userDao")public class UserDao extends HibernateDaoSupport implements IUserDao { @Resource(name="mySessionFactory") public void setSuperSessionFactory(SessionFactory sessionFactory) { super.setSessionFactory(sessionFactory); } @Override public void add(User user) { getHibernateTemplate().save(user); } @Override public void update(User user) { getHibernateTemplate().update(user); } @Override public void delete(int id) { User user=load(id); getHibernateTemplate().delete(user); } @Override public User load(int id) { return getHibernateTemplate().load(User.class, id); } @Override public List<User> list() { String hql="from User"; return getHibernateTemplate().getSessionFactory().getCurrentSession().createQuery(hql).list(); } String getCountHql(String hql) { String from=hql.substring(hql.toLowerCase().indexOf("from")); from.replaceAll(" fetch ", " "); String hqlCount="select count(*) "+from; return hqlCount; } @Override public Pager<User> find() { int pageOffset=SystemContext.getPageOffset(); if(pageOffset<=0) pageOffset=0; int pageSize=SystemContext.getPageSize(); if(pageSize<=0) pageSize=15; String hql="from User"; org.hibernate.Query query=getHibernateTemplate().getSessionFactory().getCurrentSession().createQuery(hql); query.setFirstResult(pageOffset).setMaxResults(pageSize); List<User> datas=query.list(); String hqlCount=getCountHql(hql); long totalRecord=(long) getHibernateTemplate().getSessionFactory().getCurrentSession().createQuery(hqlCount).uniqueResult(); LogUtil.printLog(totalRecord); Pager<User> pager=new Pager<>(pageOffset, pageSize, totalRecord, datas); return pager; } @Override public User loadByUsername(String username) { String hql="from User u where u.username=?"; User user=(User) getHibernateTemplate().getSessionFactory().getCurrentSession().createQuery(hql). setParameter(0, username).uniqueResult(); return user; }}3.com.my.service 【Service 服务层】
IUserService.java 【接口】
package com.my.service;import java.util.List;import com.my.model.Pager;import com.my.model.User;public interface IUserService { void add(User user); void update(User user); void delete(int id); User load(int id); User loadByUsername(String username); List<User> list(); Pager<User> find(); User login(String username, String password);}UserService.java 【实体】
package com.my.service;import java.util.List;import javax.annotation.Resource;import org.springframework.stereotype.Service;import com.my.dao.IUserDao;import com.my.model.Pager;import com.my.model.User;import com.my.model.UserException;@Service("userService")public class UserService implements IUserService { private IUserDao userDao; @Resource(name="userDao") public void setUserDao(IUserDao userDao) { this.userDao = userDao; } @Override public void add(User user) { User user2=loadByUsername(user.getUsername()); if(null!=user2) { throw new UserException(user.getUsername()+" is exist!"); } userDao.add(user); } @Override public void update(User user) { User userOld=loadByUsername(user.getUsername()); if(null==userOld) { throw new UserException(user.getUsername()+" isn't exist!"); } userOld.setNickname(user.getNickname()); userOld.setPassword(user.getPassword()); userOld.setEmail(user.getEmail()); userDao.update(userOld); } @Override public void delete(int id) { userDao.delete(id); throw new UserException("I add this exception purposely! for test spring transaction control!"); } @Override public User load(int id) { return userDao.load(id); } @Override public User loadByUsername(String username) { return userDao.loadByUsername(username); } @Override public List<User> list() { return userDao.list(); } @Override public Pager<User> find() { return userDao.find(); } @Override public User login(String username, String password) { User user=loadByUsername(username); if(null==user) { throw new UserException(username+" isn't exit! "); } if(!user.getPassword().equals(password)) { throw new UserException("password isn't correct!"); } return user; }}4.com.my.web 【Controller层，web控制层】
IndexController.java 【权限控制】
package com.my.web;import javax.annotation.Resource;import javax.servlet.http.HttpSession;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.SessionAttributes;import org.springframework.web.servlet.view.UrlBasedViewResolver;import com.my.model.User;import com.my.service.IUserService;@Controller//@SessionAttributes("loginUser") 表明Model中的loginUser属性会自动存储到HttpSession中public class IndexController { private IUserService userService; @Resource public void setUserService(IUserService userService) { this.userService = userService; } @RequestMapping(value="/login", method=RequestMethod.GET) public String login() { return "../login"; } @RequestMapping(value="/login", method=RequestMethod.POST) public String login(String username, String password, Model model, HttpSession session) { if(null==username || null==password) { model.addAttribute("errors", "username and password can't be empty!"); return "../login"; } User loginUser=userService.login(username, password); session.setAttribute("loginUser", loginUser); return UrlBasedViewResolver.REDIRECT_URL_PREFIX+"/user/list"; }}LoginFilter.java 【权限 过滤器，登录】
package com.my.web;import java.io.IOException;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import com.my.model.SystemContext;import com.my.model.User;import com.my.util.LogUtil;public class LoginFilter implements Filter { private User loginUser; @Override public void destroy() { } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { LogUtil.printLog(""); HttpServletRequest httpReq=(HttpServletRequest)request; loginUser=(User) httpReq.getSession().getAttribute("loginUser"); if(null==loginUser) { //((HttpServletResponse)response).sendRedirect(httpReq.getContextPath()+"/WEB-INF/login.jsp"); //服务器端跳转 httpReq.getRequestDispatcher("/WEB-INF/login.jsp").forward(request, response); return; } try { chain.doFilter(request, response); }finally { } } @Override public void init(FilterConfig arg0) throws ServletException { }}UserController.java 【模块业务控制】
package com.my.web;import java.util.List;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpSession;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.validation.BindingResult;import org.springframework.validation.annotation.Validated;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.servlet.view.UrlBasedViewResolver;import com.my.model.Pager;import com.my.model.User;import com.my.service.IUserService;import com.my.util.LogUtil;@Controller//使用“/user”访问这个controller@RequestMapping("/user")public class UserController { private IUserService userService; @Resource public void setUserService(IUserService userService) { this.userService = userService; } @RequestMapping(value= {"/", "/list"}, method=RequestMethod.GET) public String list(Model model) { Pager<User> pager=userService.find(); model.addAttribute("pager", pager); return "user/list"; } @RequestMapping(value="/add", method=RequestMethod.GET) public String add(Model model) { model.addAttribute(new User()); return "user/add"; } @RequestMapping(value="/add", method=RequestMethod.POST) public String add(@Validated User user, BindingResult br, Model model, HttpServletRequest request) { if(br.hasErrors()) { return "user/add"; } LogUtil.printLog(user); LogUtil.printLog(br.getAllErrors()); userService.add(user); return UrlBasedViewResolver.REDIRECT_URL_PREFIX+"/user/list"; } @RequestMapping(value="/{username}/show", method=RequestMethod.GET) public String show(@PathVariable String username, Model model) { User user=userService.loadByUsername(username); model.addAttribute(user); return "user/show"; } @RequestMapping(value="/{id}/update", method=RequestMethod.GET) public String update(@PathVariable int id, Model model) { User user=userService.load(id); model.addAttribute(user); return "user/update"; } @RequestMapping(value="/{id}/update", method=RequestMethod.POST) public String update(@Validated User user, BindingResult br, @PathVariable int id, HttpServletRequest request) { if(br.hasErrors()) { //服务器端跳转 return "user/update"; } userService.update(user); //客户端跳转 return UrlBasedViewResolver.REDIRECT_URL_PREFIX+"/user/"+user.getUsername()+"/show"; } @RequestMapping(value="/{id}/delete", method=RequestMethod.GET) public String delete(@PathVariable int id) { userService.delete(id); return UrlBasedViewResolver.REDIRECT_URL_PREFIX+"/user/list"; } @RequestMapping(value="logout", method=RequestMethod.GET) public String logout(HttpSession session) { //session.setAttribute("loginUser", null); session.invalidate(); return UrlBasedViewResolver.REDIRECT_URL_PREFIX+"/login"; }}SystemContextFilter.java 【参数过滤器】
package com.my.web;import java.io.IOException;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import com.my.model.SystemContext;import com.my.util.LogUtil;public class SystemContextFilter implements Filter { private int pageOffset; private int pageSize; @Override public void destroy() { // TODO Auto-generated method stub } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { try { pageOffset=Integer.parseInt(request.getParameter("pager.offset")); }catch (NumberFormatException e) { LogUtil.printLog("pager.offset: "+request.getParameter("pager.offset")); } SystemContext.setPageOffset(pageOffset); SystemContext.setPageSize(pageSize); try { chain.doFilter(request, response); }finally { SystemContext.removePageOffset(); SystemContext.removePageSize(); } } @Override public void init(FilterConfig arg0) throws ServletException { try { pageSize=Integer.parseInt(arg0.getInitParameter("pageSize")); }catch(NumberFormatException e) { LogUtil.printLog("pageSize="+pageSize); } }}五、web界面
1.WebContent/inc/pager.jsp 【分页模板，直接jsp:include】
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib prefix="pg" uri="http://jsptags.com/tags/navigation/pager" %><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@page isELIgnored="false" %><% //param 是 JSTL request.getParameter的 关键字 //int items =1; //int maxPageItems=20; //try{ // items =Integer.parseInt(request.getParameter("items")); // maxPageItems=Integer.parseInt(request.getParameter("maxPageItems")); //}catch(Exception e){ // e.printStackTrace(); //} //String searchParameters =request.getParameter("parameters"); //LogUtil.printLog("maxPageItems="+maxPageItems+" searchParameters:"+searchParameters);%><pg:pager items="${param.items}" maxPageItems="${param.maxPageItems}" maxIndexPages="10" export="curPage=pageNumber" url="${param.url }"> <pg:last> 共有${param.items}条记录.共${pageNumber}页 ${curPage} </pg:last> <c:forEach var="par" items="${param.parameters}"> <pg:param name="${par}" /> </c:forEach> <pg:first> <a href="${pageUrl}">首页</a> </pg:first> <pg:prev> <a href="${pageUrl}">上一页</a> </pg:prev> <pg:pages> <c:if test="${curPage eq pageNumber}"> ${pageNumber } </c:if> <c:if test="${curPage ne pageNumber}"> <a href="${pageUrl }">${pageNumber } </a> </c:if> </pg:pages> <pg:next> <a href="${pageUrl}">下一页</a> </pg:next> <pg:last> <a href="${pageUrl}">尾页</a> </pg:last></pg:pager>2.WebContent/WEB-INF/decorators/main.jsp 【sitemesh进行web页面封装的修饰器】
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib uri="http://www.opensymphony.com/sitemesh/decorator" prefix="decorator" %><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title><decorator:title default="欢迎使用fuck" /> </title><link rel="stylesheet" type="text/css" href="<%=request.getContextPath()%>/css/main.css" /><decorator:head></decorator:head></head><body> <font color="red">loginUser:${loginUser.username }</font> <c:if test="${not empty loginUser}"> 欢迎<font color="green">${loginUser.nickname}</font>! <a href="<%=request.getContextPath()%>/user/logout">注销</a> <!-- 使用绝对路径 --> <a href="<%=request.getContextPath() %>/user/add">添加用户</a> <a href="<%=request.getContextPath() %>/user/list">用户列表</a> </c:if> <c:if test="${empty loginUser}"> <a href="<%=request.getContextPath()%>/login">登录</a> <a href="<%=request.getContextPath()%>/"></a> </c:if> <c:if test="${not empty loginUser && loginUser.username eq \"1\"}"> <a href="<%=request.getContextPath() %>/"></a> <a href="<%=request.getContextPath() %>/"></a> <a href="<%=request.getContextPath()%>/"></a> </c:if> <a href="<%=request.getContextPath() %>/"></a> <hr /> <h1 align="center"><decorator:title default="fuck"></decorator:title> </h1> <hr /> <decorator:body /><hr /> <div align="center" style="clear:both;margin-top:10px;"> CopyRight@2022-2222<br /> fuck项目 </div></body></html>3.WebContent/WEB-INF/login.jsp 【登录界面】
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="sf" uri="http://www.springframework.org/tags/form" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>user login</title></head><body> <form action="<%=request.getContextPath() %>/login" method="post"> <table border="1" cellspacing="1" align="center"> <tr><td>username:<input type="text" name="username"/> </td> </tr> <tr><td>password:<input type="password" name="password"/> </td> </tr> <tr><td><input type="submit" value="login"> </td> </tr> </table> </form></body></html>4.WebContent/WEB-INF/jsp/user/ 【用户功能界面文件夹】
add.jsp 【添加界面】
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="sf" uri="http://www.springframework.org/tags/form" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>user add</title></head><body> <sf:form method="post" modelAttribute="user"> <table border="1" cellspacing="0" align="center"> <tr><td>userName:</td><td><sf:input path="username"/><sf:errors path="username"></sf:errors> </td> </tr> <tr><td>password:</td><td><sf:input path="password"/><sf:errors path="password"></sf:errors> </td> </tr> <tr><td>nickname:</td><td><sf:input path="nickname"/><sf:errors path="nickname"></sf:errors> </td> </tr> <tr><td>email:</td><td><sf:input path="email"/><sf:errors path="email"></sf:errors> </td> </tr> <tr><td colspan="2"><input type="submit" value="add"/> </td> </tr> </table> </sf:form></body></html>list.jsp 【列表界面】
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>user list</title></head><body> <table width="700" align="center" border="1" cellpadding="0"> <thead> <tr> <td>用户Id</td><td>用户名</td><td>密码</td><td>昵称</td><td>邮箱</td><td>操作</td> </tr> </thead> <tbody> <c:if test="${pager.totalRecord lt 1 }"> <tr><td colspan="6">没有用户</td> </tr> </c:if> <c:if test="${pager.totalRecord ge 1 }"> <c:forEach items="${pager.datas }" var="user"> <tr> <td>${user.id }</td><td><a href="${user.username }/show">${user.username }</a></td><td>${user.password }</td> <td>${user.nickname }</td><td>${user.email }</td> <td><a href="${user.id }/update">更新</a> <a href="${user.id }/delete">删除</a></td> </tr> </c:forEach> </c:if> </tbody> <tfoot> <tr> <td colspan="6"> <jsp:include page="/inc/pager.jsp"> <jsp:param value="${pager.totalRecord }" name="items"/> <jsp:param value="${pager.pageSize }" name="maxPageItems"/> <jsp:param value="list" name="url"/> </jsp:include> </td> </tr> </tfoot> </table></body></html>show.jsp 【展示界面】
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="sf" uri="http://www.springframework.org/tags/form" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>user[${user.username }] show</title></head><body> <c:if test="${empty user }"> ${user.username } isn't exist！ </c:if> <c:if test="${(not empty user)}"> <table border="1" cellspacing="0" align="center"> <tr><td>user ID:</td><td><input type="text" value="${user.id}"/></td> </tr> <tr><td>userName:</td><td><input type="text" value="${user.username}"/></td> </tr> <tr><td>password:</td><td><input type="password" value="${user.password}"/></td> </tr> <tr><td>nickname:</td><td><input type="text" value="${user.nickname}"/></td> </tr> <tr><td>email:</td><td><input type="text" value="${user.email}"/></td> </tr> </table> </c:if></body></html>update.jsp 【更新界面】
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="sf" uri="http://www.springframework.org/tags/form" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>user[${user.username }] update</title></head><body> <c:if test="${empty user }"> user isn't exist！ </c:if> <c:if test="${(null != user)}"> <sf:form method="post" modelAttribute="user"> <table border="1" cellspacing="0" align="center"> <tr><td>userName:</td><td><input type="hidden" name="username" value="${user.username }" />${user.username } <sf:errors path="username"></sf:errors> </td> </tr> <tr><td>password:</td><td><sf:password path="password"/><sf:errors path="password"></sf:errors> </td> </tr> <tr><td>nickname:</td><td><sf:input path="nickname"/><sf:errors path="nickname"></sf:errors> </td> </tr> <tr><td>email:</td><td><sf:input path="email"/><sf:errors path="email"></sf:errors> </td> </tr> <tr><td colspan="2"><input type="submit" value="update"/> </td> </tr> </table> </sf:form> </c:if></body></html>5.WebContent/WEB-INF/jsp/error.jsp 【错误处理界面】
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>error Page</title></head><body> <h1>${exception.message }</h1></body></html>阅读全文
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