SpringMVC之参数传递

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

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