springmvc参数封装3

接受包装类型

定义包装类

package cn.itcast.domain;public class UserCustom {private User user;public User getUser() {return user;}public void setUser(User user) {this.user = user;}}

写接受方法

//接受包装类型@RequestMapping("receiveUserCustom")public String receiveUserCustom(UserCustom user){System.out.println(user);return "success";}

写form表单

<form action="${pageContext.request.contextPath }/user/receiveUserCustom.do">姓名<input type="text" name="user.username" id="username">年龄<input type="text" name="user.age" id="age">生日<input type="text" name="user.birthday" id="birthday">地址<input type="text" name="user.address" id="address"><input type="submit" value="user包装提交"></form>

写跳转方法

@RequestMapping("toAdd")
public String toAdd(){
return "add" ;
}

接受list集合类型

定义包装类

package cn.itcast.domain;import java.util.List;public class UserCustomList {private User user;private List<User> userList;public User getUser() {return user;}public void setUser(User user) {this.user = user;}public List<User> getUserList() {return userList;}public void setUserList(List<User> userList) {this.userList = userList;}}

写接受方法

//接受list或者map等集合类型@RequestMapping("receiveUserCustomList")public String receiveUserCUstomList(UserCustomList user){System.out.println(user);return "success";}

写form表单

<form action="${pageContext.request.contextPath }/user/receiveUserCustomList.do">姓名<input type="text" name="userList[0].username" id="username">年龄<input type="text" name="userList[0].age" id="age">姓名<input type="text" name="userList[1].username" id="username">年龄<input type="text" name="userList[1].age" id="age"><input type="submit" value="集合包装提交"></form>

写跳转方法

@RequestMapping("toAdd")public String toAdd(){return "add" ;}

接受map集合类型

定义包装类

private Map<String, Object> mps = new HashMap<String, Object>() ;public Map<String, Object> getMps() {return mps;}public void setMps(Map<String, Object> mps) {this.mps = mps;}

写接受方法

//接受map集合类型@RequestMapping("receiveUserCustomMap")public String receiveUserCustomMap(UserCustom user){System.out.println(user);return "success";}

写form表单

<form action="${pageContext.request.contextPath }/user/receiveUserCustomMap.do">姓名<input type="text" name="mps['username']" id="username">年龄<input type="text" name="mps['age']" id="age"><input type="submit" value="Map集合包装提交"></form>

所有文件

1新建项目

2web.xml

<?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" id="WebApp_ID" version="2.5">  <display-name>springmvc_2</display-name>    <servlet>  <servlet-name>springmvc</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>    </servlet>    <servlet-mapping>  <servlet-name>springmvc</servlet-name>  <url-pattern>*.do</url-pattern>  </servlet-mapping>     <filter>  <filter-name>characterEncoding</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>characterEncoding</filter-name>    <url-pattern>/*</url-pattern>  </filter-mapping>        <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></web-app>

3配置文件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:tx="http://www.springframework.org/schema/tx"       xmlns:aop="http://www.springframework.org/schema/aop"       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/tx                            http://www.springframework.org/schema/tx/spring-tx.xsd                           http://www.springframework.org/schema/aop                            http://www.springframework.org/schema/aop/spring-aop.xsd                           http://www.springframework.org/schema/context                            http://www.springframework.org/schema/context/spring-context.xsd"><context:component-scan base-package="cn.itcast"></context:component-scan><!-- 配置注解处理器映射器 --><bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean><!-- 配置注解处理器适配器 --><bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>  <!-- 配置视图解析器 -->     <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">     <property name="prefix" value="/WEB-INF/jsps/"></property><property name="suffix" value=".jsp"></property></bean>                     </beans>

4代码

执行类Controller

package cn.itcast.controller;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import cn.itcast.domain.User;import cn.itcast.domain.UserCustom;import cn.itcast.domain.UserCustomList;@Controller@RequestMapping("/user")public class UserController {//@RequestMapping("hello") //请求映射//@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" ; //返回逻辑视图}//接受int类型参数@RequestMapping("receiveInt")public String receiveInt(Integer id){System.out.println("id=" + id);return "success" ;}@RequestMapping("toAdd")public String toAdd(){return "add" ;}//接受String类型参数@RequestMapping("receiveString")public String receiveString(String username){System.out.println("name = " + username);return "success" ;}//接受javaBean对象类型@RequestMapping("receiveUser")public String receiveUser(User user){System.out.println(user);return "success" ;}//接受数组@RequestMapping("receiveArray")public String receiveArray(Integer[] ids){System.out.println(ids);return "success" ;}//接受包装类型@RequestMapping("receiveUserCustom")public String receiveUserCustom(UserCustom user){System.out.println(user);return "success";}//接受list或者map等集合类型@RequestMapping("receiveUserCustomList")public String receiveUserCUstomList(UserCustomList user){System.out.println(user);return "success";} }

域类

User

package cn.itcast.domain;import java.util.Date;public class User {private String username;private int age;private Date birthday;private String address;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}}

UserCustom

package cn.itcast.domain;public class UserCustom {private User user;public User getUser() {return user;}public void setUser(User user) {this.user = user;}}

UserCustomList

package cn.itcast.domain;import java.util.List;public class UserCustomList {private User user;private List<User> userList;public User getUser() {return user;}public void setUser(User user) {this.user = user;}public List<User> getUserList() {return userList;}public void setUserList(List<User> userList) {this.userList = userList;}}

页面

表单页面 add.jsp

<%@ 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=UTF-8"><title>Insert title here</title></head><body><form action="${pageContext.request.contextPath }/user/receiveInt.do">ID:<input type="text" name="id" id="id"><input type="submit" value="提交"></form><hr color="blue" size="12"><form action="${pageContext.request.contextPath }/user/receiveString.do">姓名:<input type="text" name="username" id="username"><input type="submit" value="提交"></form><hr color="blue" size="12"><form action="${pageContext.request.contextPath }/user/receiveUser.do">姓名<input type="text" name="username" id="username">年龄<input type="text" name="age" id="age">生日<input type="text" name="birthday" id="birthday">地址<input type="text" name="address" id="address"><input type="submit" value="user对象提交"></form><hr color="blue" size="13"><form action="${pageContext.request.contextPath }/user/receiveUserCustom.do">姓名<input type="text" name="user.username" id="username">年龄<input type="text" name="user.age" id="age">生日<input type="text" name="user.birthday" id="birthday">地址<input type="text" name="user.address" id="address"><input type="submit" value="user包装提交"></form><hr color="blue" size="13"><form action="${pageContext.request.contextPath }/user/receiveUserCustomList.do">姓名<input type="text" name="userList[0].username" id="username">年龄<input type="text" name="userList[0].age" id="age">姓名<input type="text" name="userList[1].username" id="username">年龄<input type="text" name="userList[1].age" id="age"><input type="submit" value="集合包装提交"></form><hr color="blue" size="13"><form action="${pageContext.request.contextPath }/user/receiveArray.do">ID:<input type="checkbox" name="ids" id="ids" value="1">ID:<input type="checkbox" name="ids" id="ids" value="2">ID:<input type="checkbox" name="ids" id="ids" value="3"><input type="submit" value="提交"></form></body></html>

跳转页面

<%@ 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=UTF-8"><title>Insert title here</title></head><body><h1>success 成功添加</h1></body></html>