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";

    }