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。

<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

<?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

<?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

<?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

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. */@Controllerpublic class HelloController {    @RequestMapping("/index")    public String index(ModelMap modelMap){        modelMap.put("username", "Ryan miao");        return "index";    }}

　　7.视图：/web-inf/views/index.jsp

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

　　8.定时任务task

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