SpringMVC之参数传递

1. 通过设置HttpServletRequest request 来获取数据

jsp页面：

<form action="user/add1.do" method="post">
	账号：<input  type="text" name="userNumber" /><br/>
	密码：<input  type="text" name="passWord" /><br/>
	<input type="submit" value="提交"/>
</form>

后台代码：

@RequestMapping(value="/add1.do")
	public String add(HttpServletRequest request){

		String userNumber = request.getParameter("userNumber");
		String passWord = request.getParameter("passWord");

		System.out.println("userNumber:"+userNumber+" passWord:"+passWord);

		return "user_add1";
	}

2. 直接设置参数add(@RequestParam(value="number")String userNumber,Integer passWord)

jsp页面：

<form action="user/add2.do" method="post">
	账号：<input  type="text" name="number" /><br/>
	密码：<input  type="text" name="passWord" /><br/>
	<input type="submit" value="提交"/>
</form>

后台代码：

@RequestMapping(value="/add2.do")
	public String add(@RequestParam(value="number")String userNumber,Integer passWord){

		System.out.println("userNumber:"+userNumber+" passWord:"+passWord);

		return "user_add2";
	}

3. 通过对象（JavaBean）,其中表单的name属性的值必须和类的属性名称一致

jsp页面：

<form action="user/add3.do" method="post">
	编号：<input  type="text" name="userId" /><br/>
	姓名：<input  type="text" name="userName" /><br/>
	性别：<input  type="text" name="userSex" /><br/>
	兴趣爱好：
	<input type="checkbox" name="userXq" value="英雄联盟"/>英雄联盟
	<input type="checkbox" name="userXq" value="DOTA"/>DOTA<br/>
		时间：<input  type="text" name="userTime" /><br/>
	<input type="submit" value="提交"/>
</form>

后台代码：

@RequestMapping(value="/add3.do")
	public String add3(UserInfo user){

		System.out.println(user);

		return "user_add3";
	}

JavaBean代码：

public class UserInfo  {

	private Integer userId;
	private String userName;
	private String userSex;
	private String[] userXq;

	public String[] getUserXq() {
		return userXq;
	}

	public void setUserXq(String[] userXq) {
		this.userXq = userXq;
	}

	public Integer getUserId() {
		return userId;
	}

	public void setUserId(Integer userId) {
		this.userId = userId;
	}

	public String getUserName() {
		return userName;
	}

	public void setUserName(String userName) {
		this.userName = userName;
	}

	public String getUserSex() {
		return userSex;
	}

	public void setUserSex(String userSex) {
		this.userSex = userSex;
	}

	@Override
	public String toString() {
		return "UserInfo [userId=" + userId + ", userName=" + userName
				+ ", userSex=" + userSex + ", userXq="
				+ Arrays.toString(userXq) + "]";
	}

}