springmvc4环境简单搭建和定时任务

之前复制粘贴创建了几个ssm的项目，然而回头让自己写的时候还是一头雾水，究其原因是spring的陌生。仅仅是写过几个helloworld而已。而且是照着写。我都不知道springmvc到底需要多少jar，都用来干嘛。所以，接下来要用心看spring原理了。

最近由于有定时任务的需求，简单搭建了一个springmvc4的helloworld。

ide采用的是idea，当然eclipse应该也是没问题的，因为都是maven项目。

1.创建好maven结构。

可以通过new->project->maven来创建。创建完后补充成正常的javaweb结构。即src\main\java,src\main\resource,src\main\webapp.

2.jar包--pom

关于jar包有多少，干啥用，还不清楚。这里是我在网上找的一个版本，很少jar，以后需要的时候逐渐增加就行了。

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<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.test</groupId>   <artifactId>spmvtest</artifactId>   <packaging>war</packaging>   <version>1.0-SNAPSHOT</version>   <name>spmvtest Maven Webapp</name>   <url>http://maven.apache.org</url>   <!-- 设定主仓库，按设定顺序进行查找。 -->   <repositories>       <!-- 如有Nexus私服, 取消注释并指向正确的服务器地址.     <repository>         <id>nexus-repos</id>         <name>Team Nexus Repository</name>         <url>http://192.168.11.36:8888/nexus/content/groups/public</url>     </repository> -->       <repository>       <id>oschina-repos</id>       <name>Oschina Releases</name>       <url>http://maven.oschina.net/content/groups/public</url>     </repository>       <repository>       <id>java-repos</id>       <name>Java Repository</name>       <url>http://download.java.net/maven/2/</url>     </repository>       <repository>       <id>springsource-repos</id>       <name>SpringSource Repository</name>       <url>http://repo.spring.io/release/</url>     </repository>       <repository>       <id>central-repos</id>       <name>Central Repository</name>       <url>http://repo.maven.apache.org/maven2</url>     </repository>       <repository>       <id>central-repos2</id>       <name>Central Repository 2</name>       <url>http://repo1.maven.org/maven2/</url>     </repository>     </repositories>     <!-- 设定插件仓库 -->   <pluginRepositories>       <!-- 如有Nexus私服, 取消注释并指向正确的服务器地址.     <pluginRepository>         <id>nexus-repos</id>         <name>Team Nexus Repository</name>         <url>http://192.168.11.36:8888/nexus/content/groups/public</url>     </pluginRepository> -->       <pluginRepository>       <id>oschina-repos</id>       <name>Oschina Releases</name>       <url>http://maven.oschina.net/content/groups/public</url>     </pluginRepository>     </pluginRepositories>   <properties>     <spring.version>4.0.8.RELEASE</spring.version>     <quartz.version>2.2.1</quartz.version>       <slf4j.version>1.7.7</slf4j.version>     <log4j.version>1.2.17</log4j.version>   </properties>     <dependencies>     <dependency>       <groupId>junit</groupId>       <artifactId>junit</artifactId>       <version>3.8.1</version>       <scope>test</scope>     </dependency>       <!--springmvc begin-->     <dependency>       <groupId>org.springframework</groupId>       <artifactId>spring-core</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-beans</artifactId>       <version>${spring.version}</version>     </dependency>     <dependency>       <groupId>org.springframework</groupId>       <artifactId>spring-context</artifactId>       <version>${spring.version}</version>     </dependency>     <!--springmvc end-->       <!--quartz-->     <dependency>       <groupId>org.quartz-scheduler</groupId>       <artifactId>quartz</artifactId>       <version>${quartz.version}</version>     </dependency>       <dependency>       <groupId>jstl</groupId>       <artifactId>jstl</artifactId>       <version>1.2</version>     </dependency>     <dependency>       <groupId>taglibs</groupId>       <artifactId>standard</artifactId>       <version>1.1.2</version>     </dependency>         <!-- log start -->     <dependency>       <groupId>log4j</groupId>       <artifactId>log4j</artifactId>       <version>${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>spmvtest</finalName>   </build> </project>

　　3.web.xml

设置拦截器和过滤器

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<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee"          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"          xsi:schemaLocation="http://java.sun.com/xml/ns/javaee           http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"          version="3.0">   <!-- 加载spring容器 -->   <context-param>     <param-name>contextConfigLocation</param-name>     <param-value>classpath:spring/spring-*.xml</param-value>   </context-param>   <listener>     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>   </listener>     <!-- springmvc前端控制器，rest配置 -->   <servlet>     <servlet-name>springmvc_rest</servlet-name>     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>     <!-- contextConfigLocation配置springmvc加载的配置文件（配置处理器映射器、适配器等等） 如果不配置contextConfigLocation，默认加载的是/WEB-INF/servlet名称-serlvet.xml（springmvc-servlet.xml） -->     <init-param>       <param-name>contextConfigLocation</param-name>       <param-value>classpath:spring/spring-mvc.xml</param-value>     </init-param>   </servlet>     <servlet-mapping>     <servlet-name>springmvc_rest</servlet-name>     <url-pattern>/</url-pattern>   </servlet-mapping>     <!-- post乱码过虑器 -->   <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>     <!--静态资源直接访问-->   <servlet-mapping>     <servlet-name>default</servlet-name>     <url-pattern>*.css</url-pattern>   </servlet-mapping>   <servlet-mapping>     <servlet-name>default</servlet-name>     <url-pattern>*.ico</url-pattern>   </servlet-mapping>   <servlet-mapping>     <servlet-name>default</servlet-name>     <url-pattern>*.png</url-pattern>   </servlet-mapping>   <servlet-mapping>     <servlet-name>default</servlet-name>     <url-pattern>*.jpg</url-pattern>   </servlet-mapping>   <servlet-mapping>     <servlet-name>default</servlet-name>     <url-pattern>*.js</url-pattern>   </servlet-mapping>   <servlet-mapping>     <servlet-name>default</servlet-name>     <url-pattern>*.html</url-pattern>   </servlet-mapping>   </web-app>

　　4.spring容器配置文件spring/spring-contex.xml

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<?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:task="http://www.springframework.org/schema/task"        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/task http://www.springframework.org/schema/task/spring-task.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">       <context:component-scan base-package="com.test"/>       <!-- 计划任务配置，用 @Service @Lazy(false)标注类，用@Scheduled(cron = "0 0 2 * * ?")标注方法 -->     <task:executor id="executor" pool-size="10"/> <task:scheduler id="scheduler" pool-size="10"/>     <task:annotation-driven scheduler="scheduler" executor="executor" proxy-target-class="true"/>   </beans>

　　5.dispatcherServlet配置文件spring/spring-mvc.xml

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<?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"        xmlns:mvc="http://www.springframework.org/schema/mvc"        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-4.1.xsd         http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">       <context:component-scan base-package="com.test"/>     <mvc:annotation-driven/>       <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">         <property name="viewClass"                   value="org.springframework.web.servlet.view.JstlView" />         <property name="prefix" value="/WEB-INF/views/" />         <property name="suffix" value=".jsp" />     </bean> </beans>

　　6.helloController测试

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package com.test.controller;   import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping;   /**  * Created by Administrator on 2016/4/14 0014.  */ @Controller public class HelloController {       @RequestMapping("/index")     public String index(ModelMap modelMap){         modelMap.put("username", "Ryan miao");         return "index";     } }

　　7.视图：/web-inf/views/index.jsp

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<html> <body> <h2>Hello World!</h2> hello ${username} </body> </html>

　　8.定时任务task

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package com.test.task;   import org.springframework.context.annotation.Lazy; import org.springframework.scheduling.annotation.Scheduled; import org.springframework.stereotype.Service;   /**  * Created by Administrator on 2016/4/14 0014.  */ @Service @Lazy(false) public class MyTask implements ITask {       private static int i = 0;     private static int y = 0;       @Scheduled(cron="0/5 * *  * * ?")   //每5秒执行一次     public void testCyc() {         System.out.println("task test,执行次数："+i++);     }       /**      * 心跳更新。启动时执行一次，之后每隔2秒执行一次      */     @Scheduled(fixedRate = 1000*2)     public void print(){         System.out.println("心跳执行次数："+y++);     } }

　　9.测试代码：github