SpringMVC--提交表单

今天使用AbstractCommandController做一个提交表单的样例

（1）首先，建立一个User.java

package com.zk.domain;
 
import java.util.Date;
 
public class User {
    private Integer id;
    private String name;
    private String age;
    private String birthday;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getAge() {
        return age;
    }
    public void setAge(String age) {
        this.age = age;
    }
    public String getBirthday() {
        return birthday;
    }
    public void setBirthday(String birthday) {
        this.birthday = birthday;
    }
}

（2）第二步，实现ToAddController.java，跳转至add.jsp,

package com.zk.UserController;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
 
public class ToAddController implements Controller{
 
    public ModelAndView handleRequest(HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        // TODO Auto-generated method stub
        ModelAndView mv=new ModelAndView();
        mv.setViewName("add");
        return mv;
    }
}　

（3）第三步，实现CommandController.java

package com.zk.UserController;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractCommandController;
 
import com.zk.domain.User;
 
//从页面接受参数，封装javaBean的User对象
public class CommandController extends AbstractCommandController{
    //指定把参数封装到那个对象。
    public CommandController(){
        this.setCommandClass(User.class);
    }
    @Override
    protected ModelAndView handle(HttpServletRequest request,
            HttpServletResponse response, Object command, BindException errors)
            throws Exception {
        // TODO Auto-generated method stub
        //值被封装命令对象
        User user=(User) command;
         
        ModelAndView mv=new ModelAndView();
        //设置models
        mv.addObject("user",user);
        //指定返回视图界面
        mv.setViewName("index");
        return mv;
    }
}

　（4）第四步，配置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:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/aop
         http://www.springframework.org/schema/aop/spring-aop.xsd
         http://www.springframework.org/schema/tx
         http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
         <!-- 配置处理器映射器 -->
         <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>
         <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>
         <bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter"></bean>
         <!-- 命令对象 -->
         <bean id="/command.do" class="com.zk.UserController.CommandController"></bean>
         <!-- 跳转到Add页面 -->
         <bean id="/toAdd.do" class="com.zk.UserController.ToAddController"></bean>  
         <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/jsp/"></property>
         <property name="suffix" value=".jsp"></property>
         </bean>
          
</beans>

（5）两个jsp界面

add.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>"> 
    <title>My JSP 'add.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
  <body>
  <form action="${pageContext.request.contextPath }/command.do">
   Id：<input type="text" name="id"  id="id"/><br>
   name：<input type="text" name="name" id="name"/><br>
   age：<input type="text" name="age" id="age"/><br>
   birthday：<input type="text" name="birthday" id="birthday"/><br>
  <input type="submit" value="提交" />
  </form>
  </body>
</html>

　　index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>  
  <body>
  <!-- ${hello } --> 
  <h1>${user.name}||${user.id}||${user.age}||${user.birthday}</h1> 
  </body>
</html>

　　运行结果如下：

http://ms-20170731tkkc:8080/SpringMVC_004/command.do?id=1&name=zk&age=24&birthday=1995-03-04

带过来的参数

注解写法

Usercontroller.java

package com.zk.Controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
 
 
@Controller//<bean id="UserController" class="UserController路径">
public class UserController {
    //访问路径注意更改
    //请求映射value="/hello.do",
    //@RequestMapping("hello")
    //@RequestMapping("/hello.do")
    //@RequestMapping(value="/hello.do")
    //@RequestMapping(value="/hello.do",method=RequestMethod.GET)
    @RequestMapping(value="/hello.do",method={RequestMethod.GET,RequestMethod.POST})
    public String myHello(){
        return "hello";
    }
    @RequestMapping("receive")
    public String receiveInt(Integer id){
        System.out.println(id);
        return "success";
    }
}

　　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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
         
         <context:component-scan base-package="com.zk.Controller"></context:component-scan>
         
        <!-- 配置注解处理器映射器 
            功能：寻找执行类Controller
        -->
        <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
         
        <!-- 配置注解处理器适配器 
            功能：调用controller方法，执行controller
        -->
        <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>
         
         <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/jsp/"></property>
         <property name="suffix" value=".jsp"></property>
         </bean>
          
</beans>

　　hello.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
     
    <title>My JSP 'Hello.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
 
  </head>
   
  <body>
    Hello,UserController <br>
    <form action="${pageContext.request.contextPath}/receive.do" method="post">
    ID:<input type="text" name="id" id="id" />
    <input type="submit" value="提交"/>
    </form>
  </body>
</html>

　　success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
     
    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
   
  <body>
    success. <br>
  </body>
</html>

　　web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
    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_2_5.xsd">
  <display-name>Spring_006</display-name>
  <servlet>
  <servlet-name>springmvc</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <!-- 
  Spring 默认加载SpringMVC的配置文件，这个需要满足一下规则：
  命名规则：Servlet-name-servlet.xml========>SpringMVC-servlet.xml
  路径规范SpringMVC-serlvet.xml必须放在WEB-INF下
   -->
   <init-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>/WEB-INF/config/springmvc.xml</param-value>   
   </init-param>
  </servlet>  
  <servlet-mapping>
  <servlet-name>springmvc</servlet-name>
  <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>