SpringMVC之参数绑定

1.Controller

package com.tz.controller;

import org.springframework.beans.factory.annotation.Required;

import org.springframework.stereotype.Controller;

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

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

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

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

import com.tz.domain.Course;

@Controller

public class RequestController {

	/**

	 * @PathVariable("user"):获取路径中的值/handler/{user}

	 * @RequestParam("user"):获取请求参数/hander/{user}?user=coco

	 *

	 * @param userName

	 * @return

	 */

	@RequestMapping("/handle")

	public String handler(@RequestParam(value="user",required=false) String userName){

		//userName = request.getParameter("user");

		System.out.println(userName);

		return "success";

	}

	@RequestMapping("/handle2")

	public String handler02(@RequestParam(value="user",required=false,defaultValue="你没有带参数") String userName,

							@RequestHeader(value="User-Agent",required=false) String user_Agent,

							@CookieValue("JSESSIONID") String js){

		//userName = request.getParameter("user");

		System.out.println(userName);

		System.out.println(user_Agent);

		System.out.println(js);

		return "success";

	}

	@RequestMapping("/addCourse")

	public String addCourse(Course c){//springMVC会自动为我们定义的类型进行赋值

		/**

		 * 1.将对象中的每一个属性从request参数中尝试取出来,并进行封装

		 * request.getParameter("参数名");如果有值,就会取出来封装到实体类的属性中(调用set方法)

		 */

		System.out.println(c);

		return "success";

	}

}

　　2.domain

package com.tz.domain;

import java.util.List;

import java.util.Map;

public class Course {

	private String cname;

	private String teacher;

	private Integer price;

	private Integer stock;

	private Integer number;

	private Address address;

	private List<String> clist;//课程内容

	private Map<String,String> cmap;//key:day01,value:内容

	public List<String> getClist() {

		return clist;

	}

	public void setClist(List<String> clist) {

		this.clist = clist;

	}

	public Map<String, String> getCmap() {

		return cmap;

	}

	public void setCmap(Map<String, String> cmap) {

		this.cmap = cmap;

	}

	public Address getAddress() {

		return address;

	}

	public void setAddress(Address address) {

		this.address = address;

	}

	public String getCname() {

		return cname;

	}

	public void setCname(String cname) {

		this.cname = cname;

	}

	public String getTeacher() {

		return teacher;

	}

	public void setTeacher(String teacher) {

		this.teacher = teacher;

	}

	public Integer getPrice() {

		return price;

	}

	public void setPrice(Integer price) {

		this.price = price;

	}

	public Integer getStock() {

		return stock;

	}

	public void setStock(Integer stock) {

		this.stock = stock;

	}

	public Integer getNumber() {

		return number;

	}

	public void setNumber(Integer number) {

		this.number = number;

	}

	@Override

	public String toString() {

		return "Course [cname=" + cname + ", teacher=" + teacher + ", price=" + price + ", stock=" + stock + ", number="

				+ number + ", address=" + address + ", clist=" + clist + ", cmap=" + cmap + "]";

	}

}

package com.tz.domain;

public class Address {

	private String province;

	private String city;

	private String street;

	public String getProvince() {

		return province;

	}

	public void setProvince(String province) {

		this.province = province;

	}

	public String getCity() {

		return city;

	}

	public void setCity(String city) {

		this.city = city;

	}

	public String getStreet() {

		return street;

	}

	public void setStreet(String street) {

		this.street = street;

	}

	@Override

	public String toString() {

		return "Address [province=" + province + ", city=" + city + ", street=" + street + "]";

	}

}

　　3.jsp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>

	<a href="handle2?user=coco">访问</a><br/>

	<form action="addCourse" method="post">

		课程名称:

			<input type="text" name="cname"><br/>

		主讲老师:

			<input type="text" name="teacher"><br/>

		课程价格:

			<input type="text" name="price"><br/>

		剩余名额:

			<input type="text" name="stock"><br/>

		报名人数:

			<input type="text" name="number"><br/>

			<hr/>

			老师的居住地址:

			<br/>

			省份:

			<input type="text" name="address.province"><br/>

			城市:

			<input type="text" name="address.city"><br/>

			街道:

			<input type="text" name="address.street">

			<hr/>

			课程内容list:<br/>

			<input type="text" name="clist[0]">

			<input type="text" name="clist[1]">

			<input type="text" name="clist[2]">

			<br/>

			课程内容:<br/>

			<input type="text" name="cmap['day01']">

			<input type="text" name="cmap['day02']">

			<input type="text" name="cmap['day03']">

		<input type="submit" value="提交">

	</form>

</body>

</html>

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SpringMVC之参数绑定

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