Pom文件的配置：

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

4.0.0

com.coinidea

web

war

1.0-SNAPSHOT

hive.web Maven Webapp

http://maven.apache.org

4.2.5.RELEASE

junit

junit

3.8.1

test

org.springframework

spring-context

${spring.version}

org.springframework

spring-core

${spring.version}

org.springframework

spring-web

${spring.version}

org.springframework

spring-webmvc

${spring.version}

org.springframework

spring-test

${spring.version}

web

people.apache.snapshots

http://repository.apache.org/content/groups/snapshots-group/

false

true

本地安装tomcat，如果不知道tomcat的安装方式，请自己搜索一下。

Tomcat的配置

1.Run->Edit Configurations，点击”+”，选择tomcat local。

2. “Server” Tab， Configure Tomcat的本地路径；”Deployment”选择”+”->Artifact。

3. 运行起来之后，会弹出默认的hello world.

4. 新建自己的controller

5. web.xml的配置

6.

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"

version="3.1">

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>/WEB-INF/applicationContext.xml</param-value>

</context-param>

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

<servlet>

<servlet-name>dispatcher</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>dispatcher</servlet-name>

<url-pattern>/</url-pattern>

</servlet-mapping>

<servlet-mapping>

<servlet-name>default</servlet-name>

<url-pattern>*.css</url-pattern>

</servlet-mapping>

<servlet-mapping>

<servlet-name>default</servlet-name>

<url-pattern>*.gif</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>

</web-app>

值得注意的是，上述的servlet-mapping的default配置解决了spring静态文件404的问题。

其他所有的url都会通过dispatcher的配置进行url mapping。

7. dispatcher-servlet.xml的配置

8.

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:task="http://www.springframework.org/schema/task"

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.xsd

http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd"

default-lazy-init="false">

指定了jsp的view文件夹在/WEB-INF/views/以及运行使用spring的注解功能。所有的controller都会去pachage com.coinidea.controller中寻找。

9. FirstHello controller

package com.cmri.web.controller;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.servlet.ModelAndView;

@Controller

@RequestMapping("/first")

public class TestController {

@RequestMapping("hello")

public ModelAndView view() {

ModelAndView mv = new ModelAndView();

mv.addObject("message", "HelloWorld!");

mv.setViewName("hello");

return mv;

}

}

hello.jsp在views文件夹中：

hello world

${message}

当浏览器中访问http://localhost:8080/first/hello会显示：

10. Java web Api controller

当需要响应ajax的请求的时候，函数需要加上注解：

@RequestMapping("ajax")

@ResponseBody

public String ajax() {

return " Hello world "

}