Struts2 接受参数方法

最新推荐文章于 2019-09-20 01:38:13 发布

chenzhongwei99

最新推荐文章于 2019-09-20 01:38:13 发布

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分类专栏： Struts2

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本文介绍Struts2中四种不同的参数接收方法：通过属性、PO、DTO及ModelDriven接口接收用户输入，并展示了对应的JSP页面与后台Action实现。

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jsp：

          <form action="" name="f" method="post">
                账号：<input type="text" name="username"/><br>
                密码：<input type="password" name="password"/><br><br>
          </form>
          <input type="button" value="提交" onclick="javacript:document.f.action='<%=actionPath %>acceptparameter';document.f.submit()"/>

          <hr>

<form action="" name="f1" method="post">
                账号：<input type="text" name="user.username"/><br>
                密码：<input type="password" name="user.password"/><br><br>
          </form>
          <input type="button" value="提交" onclick="javacript:document.f1.action='<%=actionPath %>acceptparameter1';document.f1.submit()"/>

          <hr>

<form action="" name="f2" method="post">
                账号：<input type="text" name="userDTO.username"/><br>
                密码：<input type="password" name="userDTO.password"/><br>
                确认密码：<input type="password" name="userDTO.confirmingPassword"/><br>
          </form>
          <input type="button" value="提交" onclick="javacript:document.f2.action='<%=actionPath %>acceptparameter2';document.f2.submit()"/>

          <hr>

<form action="" name="f3" method="post">
                账号：<input type="text" name="user.username"/><br>
                密码：<input type="password" name="user.password"/><br><br>
          </form>
          <input type="button" value="提交" onclick="javacript:document.f3.action='<%=actionPath %>acceptparameter3';document.f3.submit()"/>

action：

public class Acceptparameter extends ActionSupport{

           private String username;
           private String password;

           //get,set方法

                      @Override
                       public String execute() throws Exception {
                            System.out.println("username="+username+"password="+password);
                           return SUCCESS;
                      }
           }

public class Acceptparameter1 extends ActionSupport{

private User user;

             //get,set方法

                       @Override
                      public String execute() throws Exception {
                            System.out.println("username="+user.getUsername()+"password="+user.getPassword());
                            return SUCCESS;
                       }

}

PO:

public class User {

private String username;
private String password;

//get,set方法
}

public class Acceptparameter2 extends ActionSupport{

             private UserDTO userDTO;
              private User user;
              //get,set方法

                 @Override
                 public String execute() throws Exception {
                      System.out.println("DTOusername="+userDTO.getUsername()+"DTOpassword="+userDTO.getPassword() +"confirmingPassword="+userDTO.getConfirmingPassword());
                      User u=new User();
                       u.setUsername(userDTO.getUsername());
                       u.setPassword(userDTO.getPassword());
                       System.out.println("username="+u.getUsername()+"password="+u.getPassword());
                      return SUCCESS;
                  }

}

PO:

public class UserDTO {

                    private String username;
                    private String password;
                     private String confirmingPassword;

//get,set方法
}

public class Acceptparameter3 extends ActionSupport implements ModelDriven<User>{

private User user =new User();

                       //get,set方法

                       @Override
                      public String execute() throws Exception {
                              System.out.println("username="+user.getUsername()+"password="+user.getPassword());
                              return SUCCESS;
                       }

}

PO:

public class User {

private String username;
private String password;

//get,set方法
}

struts.xml：

<action name="acceptparameter" class="Acceptparameter">
           <result>
              /Hello.jsp
           </result>
        </action>

        
        <action name="acceptparameter1" class="Acceptparameter1">
           <result>
              /Hello.jsp
           </result>
        </action>

        
        <action name="acceptparameter2" class="Acceptparameter2">
           <result>
              /Hello.jsp
           </result>
        </action>

        
        <action name="acceptparameter3" class="Acceptparameter3">
           <result>
              /Hello.jsp
           </result>
        </action>