集成springmvc访问网页，并从网页传值回控制台

建一个controller的包，写一个TestController.java

package controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping("con")
public class TestController {

    public TestController(){
        System.out.println("123123123");
    }
    
    @RequestMapping("test")
    @ResponseBody
    public String testmvc(){
        System.out.println("testmvc");
        return "testmvc";
    }
    
}

写构造函数方便查看是否扫描到

 

springmvc.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-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
    <!-- 配置Controller扫描 -->
    
    <context:component-scan base-package="controller"/>

    <!-- 配置注解驱动 -->
    <mvc:annotation-driven />

     <!-- 配置视图解析器 -->
<!--     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        前缀
        <property name="prefix" value="/WEB-INF/jsp/" />
        后缀
        <property name="suffix" value=".jsp" />
    </bean>  -->
    
</beans>

springmvc.xml中要配置需要扫描的controller的包，前缀后缀是action里跳转的jsp的前缀和后缀

 

在web.xml里添加springmvc的配置

<?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_2_5.xsd" version="2.5">
  <display-name>smh</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
    <!-- 配置spring -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <!-- 配置监听器加载spring -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 配置过滤器，解决post的乱码问题 -->
    <filter>
        <filter-name>encoding</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>encoding</filter-name>
        <url-pattern>*.action</url-pattern>
    </filter-mapping>
    
    <filter>
      <filter-name>openSessionInView</filter-name>
      <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
  </filter>
    <filter-mapping>
      <filter-name>openSessionInView</filter-name>
      <url-pattern>/*</url-pattern>
  </filter-mapping>

    <!-- 配置SpringMVC -->
    <servlet>
        <servlet-name>boot-crm</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc.xml</param-value>
        </init-param>
        <!-- 配置springmvc什么时候启动，参数必须为整数 -->
        <!-- 如果为0或者大于0，则springMVC随着容器启动而启动 -->
        <!-- 如果小于0，则在第一次请求进来的时候启动 -->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>boot-crm</servlet-name>
        <!-- 所有的请求都进入springMVC -->
        <url-pattern>*.action</url-pattern>
    </servlet-mapping>
 
</web-app>

 

访问路径：http://localhost:8080/art_test/con/test.action（记得加上项目名）

 

 增加一个跳转到另一个页面的action

@RequestMapping("test")
        public String testmvc(){
       System.out.println("action跳转测试");return "joinjsp.action";
    }
    
    @RequestMapping("joinjsp")
    public String joinjsp(){
        System.out.println("转发页面测试");
        return "/NewFile.jsp";
    }

NewFile.jsp里写一个表单

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/con/getbean.action" method="post">
<input type="text" name="id" value="123"/>
<input type="text" name="name" value="mvctest"/>
<input type="submit"/>
</form>
</body>
</html>

表单数据提交到TestController.java中的getbean

@RequestMapping("getbean")
    public String testmvc(bean2 bean2){
    System.out.println("bean2="+bean2);
    return "/AfterPassBean.jsp";
}

运行后会在控制台输出传递过来的bean2

bean2=bean2 [name=mvctest, id=123]