Spring MVC参数封装传递

在Spring MVC中，前端JSP页面可以传递  基本类型（int，String）、实体类型、包装类型、数组类型、集合类型（List、map ）等。

假如在传递的类型中有 Date类型的字段，需要在 Controller 通过  initBinder()  进行处理，代码如下：

@Controller
public class userController {

    /*
     * 添加用户
     * 通过基本参数封装获取参数
     */
    @RequestMapping(value = "/user/addUser2", method = RequestMethod.POST)
    public ModelAndView addUser2(String username,String usercode,Date birthday,String address) {
        ModelAndView modelAndView = new ModelAndView();
        userModel model = new userModel();
        model.setUserName(username);
        model.setUserCode(usercode);
        model.setBirthday(birthday);
        model.setAddress(address);
        modelAndView.setViewName("/user/list");
        modelAndView.addObject("user", model);
        return modelAndView;
    }

    //处理日期类型参数
    @InitBinder
    protected void initBinder(WebDataBinder binder) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, true));
    }
}

1、HttpServletRequest 获取参数

JSP页面：

<div style="width: 28%; float: left;">
        <fieldset>
            <legend>普通提交-request.getParameter(args) 获取参数</legend>
            <form action="${pageContext.request.contextPath }/user/addUser"
                method="post">
                <div style="width: 200px">
                    <label>名字:</label> <input name="username" id="username"
                        placeholder="请输入名字" />
                </div>
                <div style="width: 200px">
                    <label>编号:</label> <input name="usercode" id="usercode"
                        placeholder="请输入编号" />
                </div>
                <div style="width: 200px">
                    <label>生日:</label> <input name="birthday" id="birthday"
                        placeholder="请输入生日" />
                </div>
                <div style="width: 200px">
                    <label>地址:</label> <input name="address" id="address"
                        placeholder="请输入地址" />
                </div>
                <div style="width: 200px">
                    <button type="reset">重置</button>
                    <button type="submit">提交</button>
                </div>
            </form>
        </fieldset>
    </div>

Controller：

/*
     * 添加用户
     * 通过 request.getParameter(args) 获取参数
     */
    @RequestMapping(value = "/user/addUser", method = RequestMethod.POST)
    public ModelAndView addUser(HttpServletRequest request, HttpServletResponse response) {
        ModelAndView modelAndView = new ModelAndView();
        userModel model = new userModel();
        model.setUserName(request.getParameter("username").toString());
        model.setUserCode(request.getParameter("usercode").toString());
        model.setAddress(request.getParameter("address").toString());
        modelAndView.setViewName("/user/list");
        modelAndView.addObject("user", model);
        return modelAndView;
    }

2、基本类型获取参数

JSP页面：

<div style="width: 28%; float: left;">
        <fieldset>
            <legend>普通提交-基本参数取值</legend>
            <form action="${pageContext.request.contextPath }/user/addUser2"
                method="post">
                <div style="width: 200px">
                    <label>名字:</label> <input name="username" id="username"
                        placeholder="请输入名字" />
                </div>
                <div style="width: 200px">
                    <label>编号:</label> <input name="usercode" id="usercode"
                        placeholder="请输入编号" />
                </div>
                <div style="width: 200px">
                    <label>生日:</label> <input name="birthday" id="birthday"
                        placeholder="请输入生日" />
                </div>
                <div style="width: 200px">
                    <label>地址:</label> <input name="address" id="address"
                        placeholder="请输入地址" />
                </div>
                <div style="width: 200px">
                    <button type="reset">重置</button>
                    <button type="submit">提交</button>
                </div>
            </form>
        </fieldset>
    </div>  

Controller：

/*
     * 添加用户
     * 通过基本参数封装获取参数
     */
    @RequestMapping(value = "/user/addUser2", method = RequestMethod.POST)
    public ModelAndView addUser2(String username,String usercode,Date birthday,String address) {
        ModelAndView modelAndView = new ModelAndView();
        userModel model = new userModel();
        model.setUserName(username);
        model.setUserCode(usercode);
        model.setBirthday(birthday);
        model.setAddress(address);
        modelAndView.setViewName("/user/list");
        modelAndView.addObject("user", model);
        return modelAndView;
    }

4、实体（javaBean）参数获取参数

实体：

 public class userModel {

     @Override
     public String toString() {
         return "userModel [userName=" + userName + ", userCode=" + userCode + ", account=" + account + ", pwd=" + pwd
                 + ", address=" + address + ", birthday=" + birthday + ", Memo=" + Memo + "]";
     }

     private String userName;
     private String userCode;
     private String account;
     private String pwd;
     private String address;
     private Date birthday;
     private String Memo;

     public String getAccount() {
         return account;
     }

     public void setAccount(String account) {
         this.account = account;
     }

     public String getPwd() {
         return pwd;
     }

     public void setPwd(String pwd) {
         this.pwd = pwd;
     }

     public String getMemo() {
         return Memo;
     }

     public void setMemo(String memo) {
         Memo = memo;
     }

     public Date getBirthday() {
         return birthday;
     }

     public void setBirthday(Date birthday) {
         this.birthday = birthday;
     }

     public String getUserName() {
         return userName;
     }

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

     public String getUserCode() {
         return userCode;
     }

     public void setUserCode(String userCode) {
         this.userCode = userCode;
     }

     public String getAddress() {
         return address;
     }

     public void setAddress(String address) {
         this.address = address;
     }

 }

JSP页面：

<div style="width: 28%; float: left;">
        <fieldset>
            <legend>通过javaBean获取参数</legend>
            <form action="${pageContext.request.contextPath }/user/addUser3"
                method="post">
                <div style="width: 200px">
                    <label>名字:</label> <input name="userName" id="userName"
                        placeholder="请输入名字" />
                </div>
                <div style="width: 200px">
                    <label>编号:</label> <input name="userCode" id="userCode"
                        placeholder="请输入编号" />
                </div>
                <div style="width: 200px">
                    <label>生日:</label> <input name="birthday" id="birthday"
                        placeholder="请输入生日" />
                </div>
                <div style="width: 200px">
                    <label>地址:</label> <input name="address" id="address"
                        placeholder="请输入地址" />
                </div>
                <div style="width: 200px">
                    <button type="reset">重置</button>
                    <button type="submit">提交</button>
                </div>
            </form>
        </fieldset>
    </div>  

Controller：

/*
     * 添加用户
     * 通过javaBean获取参数
     */
    @RequestMapping("/user/addUser3")
    public ModelAndView addUser3(userModel model) {
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.setViewName("/user/list");
        modelAndView.addObject("user", model);
        return modelAndView;
    }

5、包装类获取参数

实体类：

 public class userModel {

     @Override
     public String toString() {
         return "userModel [userName=" + userName + ", userCode=" + userCode + ", account=" + account + ", pwd=" + pwd
                 + ", address=" + address + ", birthday=" + birthday + ", Memo=" + Memo + "]";
     }

     private String userName;
     private String userCode;
     private String account;
     private String pwd;
     private String address;
     private Date birthday;
     private String Memo;

     public String getAccount() {
         return account;
     }

     public void setAccount(String account) {
         this.account = account;
     }

     public String getPwd() {
         return pwd;
     }

     public void setPwd(String pwd) {
         this.pwd = pwd;
     }

     public String getMemo() {
         return Memo;
     }

     public void setMemo(String memo) {
         Memo = memo;
     }

     public Date getBirthday() {
         return birthday;
     }

     public void setBirthday(Date birthday) {
         this.birthday = birthday;
     }

     public String getUserName() {
         return userName;
     }

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

     public String getUserCode() {
         return userCode;
     }

     public void setUserCode(String userCode) {
         this.userCode = userCode;
     }

     public String getAddress() {
         return address;
     }

     public void setAddress(String address) {
         this.address = address;
     }

 }

 public class userModelArray {
     private userModel model;

     private String code;

     public userModel getModel() {
         return model;
     }

     public void setModel(userModel model) {
         this.model = model;
     }

     public String getCode() {
         return code;
     }

     public void setCode(String code) {
         this.code = code;
     }

     @Override
     public String toString() {
         return "userModelArray [model=" + model + ", code=" + code + "]";
     }
 }

JSP页面：

<div style="width: 28%; float: left;">
        <fieldset>
            <legend>通过包装类获取参数</legend>
            <form action="${pageContext.request.contextPath }/user/addUser4"
                method="post">
                <div style="width: 200px">
                    <label>名字:</label> <input name="model.userName" id="userName"
                        placeholder="请输入名字" />
                </div>
                <div style="width: 200px">
                    <label>编号:</label> <input name="code" id="code"
                        placeholder="请输入编号" />
                </div>
                <div style="width: 200px">
                    <label>生日:</label> <input name="model.birthday" id="birthday"
                        placeholder="请输入生日" />
                </div>
                <div style="width: 200px">
                    <label>地址:</label> <input name="model.address" id="address"
                        placeholder="请输入地址" />
                </div>
                <div style="width: 200px">
                    <button type="reset">重置</button>
                    <button type="submit">提交</button>
                </div>
            </form>
        </fieldset>
    </div>  

Controller：

/*
     * 添加用户
     * 通过包装类获取参数
     */
    @RequestMapping("/user/addUser4")
    public ModelAndView addUser4(userModelArray model) {
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.setViewName("/user/list");
        modelAndView.addObject("user", model);
        return modelAndView;
    }

6、数组类型获取参数

JSP页面：

<div style="width: 28%; float: left;">
        <fieldset>
            <legend>数组类型获取参数</legend>
            <form action="${pageContext.request.contextPath }/user/addUser5"
                method="post">
                <div style="width: 200px">
                    <label>选择:</label>
                    张三<input name="id" id="id" type="checkbox" value="1" />
                    李四<input name="id" id="id" type="checkbox" value="2" />
                    王五<input name="id" id="id" type="checkbox" value="3" />
                    赵六<input name="id" id="id" type="checkbox" value="4" />
                </div>
                <div style="width: 200px">
                    <button type="reset">重置</button>
                    <button type="submit">提交</button>
                </div>
            </form>
        </fieldset>
    </div>  

Controller：

/*
     * 添加用户
     * 数组类型获取参数
     */
    @RequestMapping("/user/addUser5")
    public ModelAndView addUser5(Integer[] id) {
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.setViewName("/user/list");
        modelAndView.addObject("user", new userModel());
        return modelAndView;
    }

7、包装类-List集合 获取参数传递

JSP页面：

<div style="width: 28%; float: left;">
        <fieldset>
            <legend>封装类集合获取参数</legend>
            <form action="${pageContext.request.contextPath }/user/addUser6" method="post">
                <div style="width: 200px">
                    <label>名字:</label> <input name="userList[0].userName" id="userList[0].userName"  placeholder="请输入名字" />
                </div>
                <div style="width: 200px">
                    <label>编号:</label> <input name="userList[0].userCode" id="userList[0].userCode" placeholder="请输入编号" />
                </div>
                <div style="width: 200px">
                    <label>生日:</label> <input name="userList[0].birthday" id="birthday" placeholder="请输入生日" />
                </div>
                <div style="width: 200px">
                    <label>地址:</label> <input name="userList[0].address" id="address" placeholder="请输入地址" />
                </div>
                <div style="width: 200px">
                    <label>名字:</label> <input name="userList[1].userName" id="userList[0].userName"  placeholder="请输入名字" />
                </div>
                <div style="width: 200px">
                    <label>编号:</label> <input name="userList[1].userCode" id="userList[0].userCode" placeholder="请输入编号" />
                </div>
                <div style="width: 200px">
                    <label>生日:</label> <input name="userList[1].birthday" id="birthday" placeholder="请输入生日" />
                </div>
                <div style="width: 200px">
                    <label>地址:</label> <input name="userList[1].address" id="address" placeholder="请输入地址" />
                </div>
                <div style="width: 200px">
                    <button type="reset">重置</button>
                    <button type="submit">提交</button>
                </div>
            </form>
        </fieldset>
    </div>  

模型类：

 /*
  * 包装类 - 包装 List<userModel>
  */
 public class UserModelCustom {
     // 集合
     private List<userModel> userList; 

     public List<userModel> getUserList() {
         return userList;
     }
     public void setUserList(List<userModel> userList) {
         this.userList = userList;
     }
 }
 /*
  * userModel 类
  */
 public class userModel {
     private String userName;
     private String userCode;
     private String account;
     private String pwd;
     private String address;
     private Date birthday;
     private String Memo;

     public String getAccount() {
         return account;
     }

     public void setAccount(String account) {
         this.account = account;
     }

     public String getPwd() {
         return pwd;
     }

     public void setPwd(String pwd) {
         this.pwd = pwd;
     }

     public String getMemo() {
         return Memo;
     }

     public void setMemo(String memo) {
         Memo = memo;
     }

     public Date getBirthday() {
         return birthday;
     }

     public void setBirthday(Date birthday) {
         this.birthday = birthday;
     }

     public String getUserName() {
         return userName;
     }

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

     public String getUserCode() {
         return userCode;
     }

     public void setUserCode(String userCode) {
         this.userCode = userCode;
     }

     public String getAddress() {
         return address;
     }

     public void setAddress(String address) {
         this.address = address;
     }
 }

Controller：

/*
     * 添加用户
     * 封装类集合获取参数
     */
    @RequestMapping("/user/addUser6")
    public String addUser6(UserModelCustom customModel) {        

           return "/user/list";
    }

8、包装类-Map集合 获取参数传递

JSP页面：

<div style="width: 28%; float: left;">
        <fieldset>
            <legend>封装类Map获取参数</legend>
            <form action="${pageContext.request.contextPath }/user/addUser7" method="post">
                <div style="width: 200px">
                    <label>名字:</label> <input name="maps['userName']" id="map['userName']"  placeholder="请输入名字" />
                </div>
                <div style="width: 200px">
                    <label>编号:</label> <input name="maps['userCode']" id="map['userCode']" placeholder="请输入编号" />
                </div>
                <div style="width: 200px">
                    <label>生日:</label> <input name="maps['birthday']" id="map['birthday']" placeholder="请输入生日" />
                </div>
                <div style="width: 200px">
                    <label>地址:</label> <input name="maps['address']" id="map['address']" placeholder="请输入地址" />
                </div>
                <div style="width: 200px">
                    <button type="reset">重置</button>
                    <button type="submit">提交</button>
                </div>
            </form>
        </fieldset>
    </div>  

模型类：

 /*
  * 包装类 - 包装 List<userModel>
  */
 public class UserModelCustom {
     // map
     private Map<String, Object> maps;

     public Map<String, Object> getMaps() {
         return maps;
     }
     public void setMaps(Map<String, Object> maps) {
         this.maps = maps;
     }
 }
 /*
  * userModel 类
  */
 public class userModel {
     private String userName;
     private String userCode;
     private String account;
     private String pwd;
     private String address;
     private Date birthday;
     private String Memo;

     public String getAccount() {
         return account;
     }

     public void setAccount(String account) {
         this.account = account;
     }

     public String getPwd() {
         return pwd;
     }

     public void setPwd(String pwd) {
         this.pwd = pwd;
     }

     public String getMemo() {
         return Memo;
     }

     public void setMemo(String memo) {
         Memo = memo;
     }

     public Date getBirthday() {
         return birthday;
     }

     public void setBirthday(Date birthday) {
         this.birthday = birthday;
     }

     public String getUserName() {
         return userName;
     }
 }

Controller：

/*
     * 添加用户
     * 封装类Map获取参数
     */
    @RequestMapping("/user/addUser7")
    public String addUser7(UserModelCustom customModel) {        

           return "/user/list";
    }