在celipse上搭建ssm框架，并整合freemarker
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在celipse上搭建ssm框架，并整合freemarker
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数据库是mysql，用maven管理jar包
一、在pom文件中引入需要的jar包
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.djj.maven.demo</groupId> <artifactId>test_20171207</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>test_20171207 Maven Webapp</name> <url>http://maven.apache.org</url> <!-- 设置jar包版本号 --> <properties> <spring.version>4.0.2.RELEASE</spring.version> <mybatis.version>3.2.6</mybatis.version> <slf4j.version>1.7.25</slf4j.version> <log4j.version>1.2.17</log4j.version> </properties> <dependencies> <!-- https://mvnrepository.com/artifact/junit/junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.freemarker/freemarker --> <!-- freemarker --> <dependency> <groupId>org.freemarker</groupId> <artifactId>freemarker</artifactId> <version>2.3.23</version> </dependency> <!-- https://mvnrepository.com/artifact/com.alibaba/druid --> <!-- druid数据源 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.5</version> </dependency> <!-- spring核心包 --> <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>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</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-test</artifactId> <version>${spring.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> <!-- 导入Mysql数据库链接jar包 --> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/log4j/log4j --> <!-- log4j 日志 --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api --> <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> <!-- 映入JSON --> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> <!-- https://mvnrepository.com/artifact/org.eclipse.jetty/jetty-maven-plugin --> <!-- maven-jetty插件 --> <dependency> <groupId>org.mortbay.jetty</groupId> <artifactId>jetty-maven-plugin</artifactId> <version>8.1.16.v20140903</version> <scope>test</scope> </dependency> <!-- 格式化对象，方便输出日志 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.41</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.9</version> </dependency> </dependencies> <build> <finalName>test_20171207</finalName> <plugins> <plugin> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-maven-plugin</artifactId> <version>8.1.16.v20140903</version> <configuration> <scanIntervalSeconds>5</scanIntervalSeconds> <webApp> <contextPath>/</contextPath> </webApp> </configuration> </plugin> </plugins> </build></project>说明：pom文件最后一部分，是设置了使用maven的jetty插件进行部署，没有使用tomcat来进行部署。如果读者不习惯这种方式，可以去掉节点的部分，然后在tomcat或其他容器上部署。
二、整合spring和mybatis
数据库连接配置文件
注：本文采用阿里的druid数据库连接池app.properties# 数据库连接配置driverClassName=com.mysql.jdbc.Driverurl=jdbc:mysql://localhost:3306/testusername=rootpassword=123456filters: stat maxActive: 20 initialSize: 1 maxWait: 60000 minIdle: 10 maxIdle: 15 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 'x' testWhileIdle: true testOnBorrow: false testOnReturn: false maxOpenPreparedStatements: 20 removeAbandoned: true removeAbandonedTimeout: 1800 logAbandoned: true spring-mybatis的整合配置文件
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: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-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描包 --> <context:component-scan base-package="com.myjava"/> <!-- 引入配置文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:spring/app.properties"/> </bean> <!-- 阿里 druid 数据库连接池 --> <bean id = "dataSource" class = "com.alibaba.druid.pool.DruidDataSource" destroy-method = "close" > <!-- 数据库基本信息配置 --> <property name = "url" value = "${url}" /> <property name = "username" value = "${username}" /> <property name = "password" value = "${password}" /> <property name = "driverClassName" value = "${driverClassName}" /> <property name = "filters" value = "${filters}" /> <!-- 最大并发连接数 --> <property name = "maxActive" value = "${maxActive}" /> <!-- 初始化连接数量 --> <property name = "initialSize" value = "${initialSize}" /> <!-- 配置获取连接等待超时的时间 --> <property name = "maxWait" value = "${maxWait}" /> <!-- 最小空闲连接数 --> <property name = "minIdle" value = "${minIdle}" /> <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 --> <property name = "timeBetweenEvictionRunsMillis" value ="${timeBetweenEvictionRunsMillis}" /> <!-- 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 ="${minEvictableIdleTimeMillis}" /> <property name = "validationQuery" value = "${validationQuery}" /> <property name = "testWhileIdle" value = "${testWhileIdle}" /> <property name = "testOnBorrow" value = "${testOnBorrow}" /> <property name = "testOnReturn" value = "${testOnReturn}" /> <property name = "maxOpenPreparedStatements" value ="${maxOpenPreparedStatements}" /> <!-- 打开 removeAbandoned 功能 --> <property name = "removeAbandoned" value = "${removeAbandoned}" /> <!-- 1800 秒，也就是 30 分钟 --> <property name = "removeAbandonedTimeout" value ="${removeAbandonedTimeout}" /> <!-- 关闭 abanded 连接时输出错误日志 --> <property name = "logAbandoned" value = "${logAbandoned}" /> </bean> <!-- spring整合mybatis --> <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/myjava/mapper/*.xml" /> </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.myjava.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean></beans>三、整合springMVC
spring-mvc配置文件spring-mvc.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-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package="com.myjava.controller" /> <!--避免IE执行AJAX时，返回JSON出现下载文件 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 --> </list> </property> </bean> <!-- freemarker的配置属性 --> <bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"> <property name="templateLoaderPath" value="/WEB-INF/template/" /> <property name="freemarkerSettings"> <props> <prop key="template_update_delay">0</prop> <prop key="default_encoding">UTF-8</prop> <prop key="number_format">0.##########</prop> <prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop> <prop key="classic_compatible">true</prop> <prop key="template_exception_handler">ignore</prop> </props> </property> </bean> <!-- View resolvers can also be configured with ResourceBundles or XML files. If you need different view resolving based on Locale, you have to use the resource bundle resolver. --> <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver"> <property name="ignoreAcceptHeader" value="true" /> <property name="defaultContentType" value="text/html" /> <property name="mediaTypes"> <map> <entry key="json" value="application/json" /> </map> </property> <property name="favorParameter" value="false" /> <property name="viewResolvers"> <list> <!-- 配置freeMarker视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"> <property name="cache" value="true" /> <property name="prefix" value="" /> <property name="suffix" value=".ftl" /> <property name="contentType" value="text/html;charset=UTF-8" /> <property name="requestContextAttribute" value="request" /> <property name="exposeRequestAttributes" value="true" /> <property name="exposeSessionAttributes" value="true" /> <property name="exposeSpringMacroHelpers" value="true" /> </bean> <!-- <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean> --> </list> </property> </bean></beans>四、配置web.xml中的filter和servlet
<?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" version="3.0"> <display-name>Archetype Created Web Application</display-name> <!-- Spring和mybatis的配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/spring-mybatis.xml</param-value> </context-param> <!-- 编码过滤器 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- Spring监听器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 防止Spring内存溢出监听器 --> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <!-- Spring MVC servlet --> <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:spring/spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 --> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list></web-app>五、对应的controller的方法
/** * */package com.myjava.controller;import org.apache.log4j.Logger;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.servlet.ModelAndView;import com.myjava.entity.AccountInfo;import com.myjava.service.AccountInfoService;/** * @author * */@Controller@RequestMapping("/account")public class AccountInfoController { private static Logger logger = Logger.getLogger(AccountInfoController.class); @Autowired private AccountInfoService accountService; /* *这里使用ModelAndView和Model两种方法都是可以的 */ @RequestMapping("/getinfo") public ModelAndView getAccountInfo(){ ModelAndView model = new ModelAndView(); AccountInfo entity = accountService.getAccountInfoById(1); model.addObject("userinfo", entity); model.setViewName("index"); return model; } @RequestMapping("detail") public String getDetail(Model model){ AccountInfo entity = accountService.getAccountInfoById(1); model.addAttribute("userinfo",entity); return "index"; }}六、以下是我的代码结构
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