SPRINGMVC4 environment Simple construction and scheduled tasks

Before the copy and paste created a few SSM project, but back to let yourself write the time is still confused, the reason is spring unfamiliar. Just wrote a few HelloWorld. And it's written. I don't even know how many jars springmvc need to do. So, the next step is to look at the spring principle.

Recently, due to the need for scheduled tasks, a simple springmvc4 HelloWorld was built.

The IDE uses idea, and of course eclipse should be no problem, because it's all MAVEN projects.

1. Create a good MAVEN structure.

Can be created by New->project->maven. After creation, it is added to the normal javaweb structure. That is Src\main\java,src\main\resource,src\main\webapp.

2.jar Pack--pom

It's unclear how much the jar package is and what it does. Here is a version I found on the internet, very few jars, and gradually increase the time needed later on the line.

<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> <!--set up the main warehouse and find it in the set order.    -<repositories> <!--If you have a nexus, uncomment it and point to the correct server address. <repository> <id>nexus-repos</id> <name>team Nexus repository</name> &L T;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> & Lt;name>java repository</name> <url>http://download.java.net/maven/2/</url> </repository&    Gt      <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 Re Pository 2</name> <url>http://repo1.maven.org/maven2/</url> </repository> </repositori    Es> <!--set up the plugin warehouse--<pluginRepositories> <!--If you have a nexus, uncomment it and point to the correct server address. <pluginRepository> &LT;ID&GT;nexus-repos</id> <name>team Nexus repository</name> <url>http://192.168.11.36:8888 /nexus/content/groups/public</url> </pluginRepository> <pluginRepository> <id>os china-repos</id> <name>oschina releases</name> <url>http://maven.oschina.net/content/gro ups/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</artifact id> <version>3.8.1</version> <scope>test</scope> </dependency> <!--SPR  INGMVC begin--> <dependency>    <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <vers ion>${spring.version}</version> </dependency> <dependency> <groupid>org.springframew Ork</groupid> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</vers ion> </dependency> <dependency> <groupId>org.springframework</groupId> <arti    Factid>spring-beans</artifactid> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactid>spring-context</artif Actid> <version>${spring.version}</version> </dependency> <!--springmvc end--> &L t;! --quartz--> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactid>quart Z</artifactid>     <version>${quartz.version}</version> </dependency> <dependency> <groupid>jst l</groupid> <artifactId>jstl</artifactId> <version>1.2</version> </dependenc       y> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <!--log Start-to-<dependency> & Lt;groupid>log4j</groupid> <artifactId>log4j</artifactId> &LT;VERSION&GT;${LOG4J.VERSION}&L t;/version> </dependency> <dependency> <groupId>org.slf4j</groupId> &LT;ARTIFAC tid>slf4j-api</artifactid> <version>${slf4j.version}</version> </dependency> &LT;DEP endency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> &lt ; version>${slf4j.versIon}</version> </dependency> <!--log End-to-</dependencies> <build> <finalna Me>spmvtest</finalname> </build></project>

3.web.xml

Set up interceptors and filters

<?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 "> <!--Load Spring container--<context-param> <param-na Me>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 Front Controller, rest configuration-<servlet> <servlet-name>springmvc_rest</servlet-name> <servlet-c Lass>org.springframework.web.servlet.dispatcherservlet</servlet-class> <!-- Contextconfiglocation Configuring SPRINGMVC loaded configuration files (configuring processor mapper, adapters, and so on) if Contextconfiglocation is not configured, the default load is/web-inf/ Servlet name-serlvet.xml (springmvc-seRvlet.xml)-<init-param> <param-name>contextConfigLocation</param-name> <param-val Ue>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 garbled filters--<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-valu e> </init-param> </filter> <filter-mapping> <filter-name>characterencodingfilter</fi Lter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--direct access to static resources-< Servlet-mapping> <servlet-name>default</servlet-name> <url-pattern>*.css</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-nam E>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-pat tern>*.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 Container configuration file 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 "/> <!--Scheduled task configuration with @Service @Lazy (false) Label class with @scheduled (cron =" 0 0 2 * *? ")    Labeling Method--<task:executor id= "executor" pool-size= "/> <task:scheduler id=" Scheduler "pool-size="/> <task:annotation-driven scheduler= "Scheduler" executor= "executor" Proxy-target-claSs= "true"/></beans> 

　　5.dispatcherServlet configuration file 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 Test

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. View:/web-inf/views/index.jsp

8. Scheduled Tasks 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 * * * * *  ?")   Public    void Testcyc () {        System.out.println ("Task test, number of executions:" +i++) executed once every 5 seconds;    }    /**     * Heartbeat update. Executes once at startup, and executes once every 2 seconds     */    @Scheduled (fixedrate = 1000*2) public    void print () {        System.out.println (" Heartbeat execution: "+y++);}    }
9. Test code: GitHub
SPRINGMVC4 environment Simple construction and scheduled tasks