搭建SpringMVC4.3.2+MyBatis3.4.1框架
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1、本项目由maven管理
2、配置中包含了本地环境的一些配置，如果在你的机子上报错，请删除这部分配置代码即可
3、源码已全部发布到Github - https://github.com/zhaoshuxue/ssm中了，欢迎下载（star）
一、创建maven WEB项目，配置pom.xml文件
直接上代码
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com</groupId> <artifactId>zsx</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>ssm maven web</name> <description>null</description> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <jdk.version>1.7</jdk.version> <!-- spring版本号 --> <spring.version>4.3.2.RELEASE</spring.version> <!-- mybatis版本号 --> <mybatis.version>3.4.1</mybatis.version> <!-- log4j日志文件管理包版本 --> <slf4j.version>1.7.21</slf4j.version> <log4j.version>1.2.17</log4j.version> </properties> <dependencies> <!-- spring mvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!-- spring核心包 --> <!-- springframe start --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- springframe end --> <!-- aspectjweaver.jar这是Spring AOP所要用到的包 --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.9</version> </dependency> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- mybatis/spring包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> <!-- mysql驱动包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> <!-- junit测试包 --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- 阿里巴巴数据源包 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.25</version> </dependency> <!-- Json包 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.16</version> </dependency> <!-- --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.2</version> </dependency> <!-- 文件上传 --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.2</version> </dependency> <!-- 日志文件管理包 --> <!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- log end --> </dependencies> <build> <finalName>ssm</finalName> <!-- --> <sourceDirectory>src/main/java</sourceDirectory> <testSourceDirectory>src/test/java</testSourceDirectory> <resources> <resource> <directory>src/main/resources</directory> </resource> </resources> <testResources> <testResource> <directory>src/test/resources</directory> </testResource> </testResources> <outputDirectory>src/main/webapp/WEB-INF/classes</outputDirectory> <testOutputDirectory>src/main/webapp/WEB-INF/classes</testOutputDirectory> <!-- Maven插件 --> <plugins> <!-- 编译插件 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> <configuration> <source>${jdk.version}</source> <!-- 源代码使用的开发版本 --> <target>${jdk.version}</target> <!-- 需要生成的目标class文件的编译版本 --> <!-- 一般而言，target与source是保持一致的， --> <!-- 但是，有时候为了让程序能在其他版本的jdk中运行(对于低版本目标jdk，源代码中需要没有使用低版本jdk中不支持的语法)， --> <!-- 会存在target不同于source的情况 --> <encoding>${project.build.sourceEncoding}</encoding> <fork>true</fork> <meminitial>512m</meminitial> <maxmem>2048m</maxmem> </configuration> </plugin> <!-- 设置资源文件的编码方式 --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <version>2.4.3</version> <executions> <execution> <phase>compile</phase> </execution> </executions> <configuration> <encoding>UTF-8</encoding> </configuration> </plugin> </plugins> </build></project>二、项目资源及其它配置文件
先说明一下项目的目录结构吧，如下
项目名称 | pom.xml | src | main | java | com | zsx | core | web | controller | dao | entity | mapping | service |Impl | resources | conf | jdbc.properties | applicationContext.xml | log4j.properties | springMVC-servlet.xml | spring-mybatis.xml | webapp | WEB-INF | web.xml | index.jsp | test | UtilTest.java现在说一下 \src\main\resources 目录下的配置文件，
- conf 目录下 jdbc.properties 是数据库连接配置
- applicationContext.xml 是spring的主要配置文件，（自动扫描）
- log4j.properties 记录日志
- springMVC-servlet.xml 配置springMVC，（扫描注解、视图解析器、拦截器、上传文件配置）
- spring-mybatis.xml 配置数据源、注解、事务等
下面放代码：
jdbc.properties
# MySql jdbc_driverClassName=com.mysql.jdbc.Driverjdbc_url=jdbc:mysql://localhost:3306/mytest?createDatabaseIfNotExist=true&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&transformedBitIsBoolean=truejdbc_username=rootjdbc_password=rootapplicationContext.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:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd" > <!-- 加载配置文件 --> <!-- 将多个配置文件读取到容器中，交给Spring管理 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:conf/jdbc.properties</value> </list> </property> </bean> <!-- 自动扫描dao和service包(自动注入) --> <context:component-scan base-package="com.zsx.web.dao,com.zsx.web.service" /></beans> springMVC-servlet.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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd"> <!-- 注解扫描包 , 多个写法:com.zsx.web.*,org.weixin.* (以完成bean创建和自动依赖注入的功能)--> <context:component-scan base-package="com.zsx.web.*" > <!-- springMVC配置文件中将Service注解给去掉 --> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" /> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Repository" /> </context:component-scan> <!-- <context:component-scan /> --> <!-- 扫描指定的包中的类上的注解，常用的注解有： --> <!-- @Controller 声明Action组件 --> <!-- @Service 声明Service组件 @Service("xxxService") --> <!-- @Repository 声明Dao组件 --> <!-- @Component 泛指组件, 当不好归类时. --> <!-- @RequestMapping("/menu") 请求映射 --> <!-- @Resource 用于注入，( j2ee提供的 ) 默认按名称装配，@Resource(name="beanName") --> <!-- @Autowired 用于注入，(spring提供的) 默认按类型装配 --> <!-- @Transactional( rollbackFor={Exception.class}) 事务管理 --> <!-- @ResponseBody将内容或对象作为 HTTP 响应正文返回，并调用适合HttpMessageConverter的Adapter转换对象，写入输出流 --> <!-- @Scope("prototype") 设定bean的作用域 --> <!-- 启用spring mvc 注解 --> <!-- <context:annotation-config /> --> <!-- 开启注解方案1 --> <!-- 注解方法处理 --> <!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> --> <!-- 注解类映射处理 --> <!-- <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" /> --> <!-- 开启注解方案2 --> <mvc:annotation-driven /> <!-- 静态资源访问，方案1 --> <!--<mvc:resources mapping="/static/**" location="/static/" /> <mvc:resources mapping="/images/**" location="/WEB-INF/images/" /> <mvc:resources mapping="/css/**" location="/WEB-INF/css/" /> <mvc:resources mapping="/js/**" location="/WEB-INF/js/" />--> <!-- 静态资源访问，方案2 (表示不对静态资源如CSS、JS、HTML等进行拦截) --> <mvc:default-servlet-handler /> <!-- 视图解释类 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"></property> <!--可为空,方便实现自已的依据扩展名来选择视图解释类的逻辑 --> <property name="suffix" value=".jsp"></property> </bean> <!-- Spring MVC JSON配置 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/plain;charset=UTF-8</value> </list> </property> </bean> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>application/json;charset=UTF-8</value> </list> </property> </bean> </list> </property> </bean> <!-- 文件上传配置 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding"> <value>UTF-8</value> </property> <property name="maxUploadSize"> <value>104857600</value> <!-- 100M 1024 * 1024 * 100 --> </property> <property name="maxInMemorySize"> <value>4096</value> </property> </bean> <!-- 拦截器 --> <mvc:interceptors> <!-- <mvc:interceptor> <mvc:mapping path="/**" /> <bean class="com.weixin.core.interceptors.EncodingInterceptor" /> </mvc:interceptor> --> <mvc:interceptor> <mvc:mapping path="/**" /> <bean class="com.zsx.core.interceptors.AuthInterceptor"> <!-- 不需要权限验证的地址 --> <property name="excludeUrls"> <list> <value>wechat</value><!-- 登录页面 --> <value>checkname</value><!-- 注册时检查用户名是否重复 --> <value>register</value><!-- 注册页面 --> <value>login</value><!-- 登录操作 --> <value>logout</value><!-- 登出操作 --> <value>validatecode</value><!-- 生成验证码 --> <value>user/getUserList</value> </list> </property> </bean> </mvc:interceptor> </mvc:interceptors></beans> spring-mybatis.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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd"> <!-- 配置数据源 --> <bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <property name="url" value="${jdbc_url}" /> <property name="username" value="${jdbc_username}" /> <property name="password" value="${jdbc_password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="0" /> <!-- 连接池最大使用连接数量 --> <property name="maxActive" value="20" /> <!-- 连接池最大空闲 --> <property name="maxIdle" value="20" /> <!-- 连接池最小空闲 --> <property name="minIdle" value="0" /> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="60000" /> <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 --> <property name="timeBetweenEvictionRunsMillis" value="60000" /> <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 --> <property name="minEvictableIdleTimeMillis" value="25200000" /> <!-- 打开removeAbandoned功能 --> <property name="removeAbandoned" value="true" /> <!-- 1800秒，也就是30分钟 --> <property name="removeAbandonedTimeout" value="1800" /> <!-- 关闭abanded连接时输出错误日志 --> <property name="logAbandoned" value="true" /> <!-- 监控数据库 --> <property name="filters" value="mergeStat" /> </bean> <!-- 配置MyBatis session工厂 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:com/zsx/web/mapping/*.xml"></property> </bean> <!-- DAO接口所在包名，Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.zsx.web.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <!-- 第一种方式: 注解方式配置事物 --> <!-- <tx:annotation-driven transaction-manager="transactionManager" /> --> <!-- 第二种方式: 拦截器方式配置事物 --> <tx:advice id="transactionAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="add*" /> <tx:method name="save*" /> <tx:method name="update*" /> <tx:method name="modify*" /> <tx:method name="edit*" /> <tx:method name="delete*" /> <tx:method name="remove*" /> <tx:method name="repair" /> <tx:method name="deleteAndRepair" /> <tx:method name="get*" propagation="SUPPORTS" /> <tx:method name="find*" propagation="SUPPORTS" /> <tx:method name="load*" propagation="SUPPORTS" /> <tx:method name="search*" propagation="SUPPORTS" /> <tx:method name="datagrid*" propagation="SUPPORTS" /> <tx:method name="*" propagation="SUPPORTS" /> </tx:attributes> </tx:advice> <!-- Spring AOP config 解释一下 (* com.evan.crm.service.*.*(..)) 中几个通配符的含义： --> <!-- 第一个 * —— 通配 任意返回值类型 --> <!-- 第二个 * —— 通配 包com.evan.crm.service下的任意class --> <!-- 第三个 * —— 通配包com.evan.crm.service下的任意class的任意方法 --> <!-- 第四个 .. —— 通配 方法可以有0个或多个参数 --> <!-- 事务控制位置，一般在业务层service --> <aop:config> <aop:pointcut id="transactionPointcut" expression="execution(* com.zsx.web.service..*Impl.*(..))" /> <!-- 多个 expression="(execution(* com.weixin.web.service..*Impl.*(..)))or(execution(* org.weixin.service..*Impl.*(..)))" --> <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" /> </aop:config></beans>log4j.properties
log4j.rootLogger=info, stdout, HtmlFile#log4j.appender.ServerDailyRollingFile=org.apache.log4j.DailyRollingFileAppender #log4j.appender.ServerDailyRollingFile.DatePattern='.'yyyy-MM-dd #log4j.appender.ServerDailyRollingFile.File=G://logs/notify-subscription.log #log4j.appender.ServerDailyRollingFile.layout=org.apache.log4j.PatternLayout #log4j.appender.ServerDailyRollingFile.layout.ConversionPattern=%d - %m%n #log4j.appender.ServerDailyRollingFile.Append=truelog4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %p [%c] %m%nlog4j.appender.HtmlFile=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.HtmlFile.file=${webapp.root}/my_loglog4j.appender.HtmlFile.DatePattern='_'yyyy-MM-dd'.html'log4j.appender.HtmlFile.layout=org.apache.log4j.HTMLLayoutlog4j.appender.HtmlFile.Threshold=ALL三、后台核心代码 java\src
1. 创建实体类对象 src\main\java\com\zsx\web\entity\User.java
package com.zsx.web.entity;import java.io.Serializable;public class User implements Serializable { /** * */ private static final long serialVersionUID = 1L; private String id;// private String name;// private String pwd;// public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPwd() { return pwd; } public void setPwd(String pwd) { this.pwd = pwd; }}2. Mybatis的映射xml文件 src\main\java\com\zsx\web\mapping\UserMapper.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "mybatis-3-mapper.dtd" ><mapper namespace="com.zsx.web.dao.UserMapper" > <select id="selectByPrimaryKey" resultType="com.zsx.web.entity.User" > select `id` ,`name` ,`pwd` from user where `id` = #{id} </select> <insert id="insert" parameterType="com.zsx.web.entity.User" useGeneratedKeys="true" > insert into user (`id` ,`name` ,`pwd` ) values (#{id},#{name},#{pwd}) </insert> <delete id="deleteByPrimaryKey"> delete from user where `id` = #{id} </delete></mapper>3. 与mapper.xml对应的dao层文件
package com.zsx.web.dao;import org.apache.ibatis.annotations.Param;import com.zsx.web.entity.User;public interface UserMapper { int deleteByPrimaryKey(@Param(value="id")String id); int insert(User user); User selectByPrimaryKey(@Param(value="id")String id);}4. 逻辑层service 定义接口 及 其实现类
- src\main\java\com\zsx\web\service\UserService.java
package com.zsx.web.service;import com.zsx.web.entity.User;public interface UserService { User searchById(String id); int insert(User user); int delete(String id);}- src\main\java\com\zsx\web\service\Impl\UserServiceImpl.java
package com.zsx.web.service.Impl;import javax.annotation.Resource;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Transactional;import com.zsx.web.dao.UserMapper;import com.zsx.web.entity.User;import com.zsx.web.service.UserService;@Service("userService")public class UserServiceImpl implements UserService { @Resource private UserMapper userMapper; public User searchById(String id){ return userMapper.selectByPrimaryKey(id); } @Transactional public int insert(User user) { return userMapper.insert(user); } @Transactional public int delete(String id){ return userMapper.deleteByPrimaryKey(id); }}5. controller 控制层（action层） src\main\java\com\zsx\web\controller\UserController.java
package com.zsx.web.controller;import java.io.IOException;import java.io.PrintWriter;import java.util.List;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import com.alibaba.fastjson.JSON;import com.zsx.web.entity.User;import com.zsx.web.service.UserService;@Controller@RequestMapping("user")public class UserController { @Autowired private UserService userService; /** * 获取用户 */ @RequestMapping("/getUserList") public void getJson(HttpServletRequest request, HttpServletResponse response) throws IOException { User user = userService.searchById("1"); response.setContentType("application/json;charset=utf-8"); PrintWriter out = response.getWriter(); out.println(JSON.toJSONString(user)); out.flush(); out.close(); }}6. 拦截器代码(可忽略)
我在
springMVC-servlet.xml中配置了拦截器，所以要添加下面的一个方法，如果不想添加，直接去springMVC-servlet.xml中把拦截器的标签注释<mvc:interceptors>掉即可。
- src\main\java\com\zsx\core\interceptors\AuthInterceptor.java
package com.zsx.core.interceptors;import java.util.List;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.springframework.web.servlet.HandlerInterceptor;import org.springframework.web.servlet.ModelAndView;public class AuthInterceptor implements HandlerInterceptor { private List<String> excludeUrls;// 不需要拦截的资源 public List<String> getExcludeUrls() { return excludeUrls; } public void setExcludeUrls(List<String> excludeUrls) { this.excludeUrls = excludeUrls; } /** * 这个方法的主要作用是用于清理资源的，当然这个方法也只能在当前这个Interceptor的preHandle方法的返回值为true时才会执行。 */ @Override public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3) throws Exception { // TODO Auto-generated method stub } /** * 在Controller的方法调用之后执行 */ @Override public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3) throws Exception { // TODO Auto-generated method stub } /** * preHandle方法是进行处理器拦截用的，顾名思义，该方法将在Controller处理之前进行调用， * SpringMVC中的Interceptor拦截器是链式的，可以同时存在多个Interceptor， * 然后SpringMVC会根据声明的前后顺序一个接一个的执行，而且所有的Interceptor中的preHandle方法都会在Controller方法调用之前调用。 * SpringMVC的这种Interceptor链式结构也是可以进行中断的，这种中断方式是令preHandle的返 * 回值为false，当preHandle的返回值为false的时候整个请求就结束了。 */ @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object arg2) throws Exception { HttpSession session = request.getSession(); String requestURI = request.getRequestURI(); String contextPath = request.getContextPath(); String url = requestURI.substring(contextPath.length() + 1); // 测试用 if (true) { return true; } // 如果要访问的资源是不需要验证的 if (url.indexOf("wechatController") > -1 || excludeUrls.contains(url)) { return true; } // 获取用户 信息 验证 然后判断 TODO return false; }}四、单元测试
src\test\java\ssm\UtilTest.java
package ssm;import org.junit.After;import org.junit.Before;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import org.springframework.test.context.web.WebAppConfiguration;import com.alibaba.fastjson.JSON;import com.zsx.web.dao.UserMapper;import com.zsx.web.entity.User;import com.zsx.web.service.UserService;/** * 单元测试 * @author developer */// 告诉spring怎样执行@RunWith(SpringJUnit4ClassRunner.class)// 标明是web应用测试@WebAppConfiguration(value = "src/main/webapp") //可以不填，默认此目录// 配置文件地址@ContextConfiguration(locations = { "file:src/main/resources/applicationContext.xml", "file:src/main/resources/spring-mybatis.xml", "file:src/main/resources/springMVC-servlet.xml" })public class UtilTest { @Autowired private UserMapper userMapper; @Autowired private UserService userService; @Before public void before(){ System.out.println("准备测试！！！"); } @After public void After(){ System.out.println("测试结束！！！"); } @Test public void get() { User user = userMapper.selectByPrimaryKey("1"); System.out.println(JSON.toJSONString(user)); } @Test public void add(){ User user = new User(); user.setId("7"); user.setName("wodemingzi"); user.setPwd("!@#$%^&"); userService.insert(user); }}当把上面的单元测试代码写完后，就可以运行单元测试了，选中方法名add 右键 Debug As —— JUnit Test 即可。
最后，忘了配置web.xml了，代码如下： src\main\webapp\WEB-INF\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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>Archetype Created Web Application</display-name> <!-- 读取spring配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath:applicationContext.xml,classpath:spring-mybatis.xml </param-value> </context-param> <listener> <description>spring监听器</description> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 防止spring内存溢出监听器 --> <listener> <description>Introspector缓存清除监听器</description> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <!-- springMVC核心配置 --> <!-- 配置spring mvc的相关内容，此处的servlet-name任意，但必须有<your servlet-name>-servlet.xml与之对应 --> <servlet> <servlet-name>springMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springMVC-servlet.xml</param-value> </init-param> <!-- 启动顺序，让这个Servlet随Servlet容器一起启动。 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 配置过滤器，同时把所有的请求都转为utf-8编码 --> <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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 配置session超时时间，单位分钟 --> <session-config> <session-timeout>30</session-timeout> </session-config> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- 错误跳转页面 --> <error-page> <!-- 路径不正确 --> <error-code>404</error-code> <location>/WEB-INF/errorpage/404.jsp</location> </error-page> <error-page> <!-- 没有访问权限，访问被禁止 --> <error-code>405</error-code> <location>/WEB-INF/errorpage/405.jsp</location> </error-page> <error-page> <!-- 内部错误 --> <error-code>500</error-code> <location>/WEB-INF/errorpage/500.jsp</location> </error-page></web-app>至此，整个项目算是搭建完毕了，将项目发布到tomcat或jetty中，在浏览器中输入：
http://localhost:[端口号]/[你的项目名]/user/getUserList
就可以看到效果了
五、注意事项
- 如果你的文件目录名称跟我的不一样，请注意修改
applicationContext.xml、spring-mybatis.xml、springMVC-servlet.xml配置文件里的各种路径属性 - 注意
jdbc.properties里数据库连接地址配置， ip、端口号、库名等 - mybatis的Mapper映射文件只写了最基本的增删查功能，其它的请自行添加
- 本篇代码仅在spring4.3.2和Mybatis3.4.1版本下运行测试，其它版本请自行查看版本变动
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