Question

我有一个struts 2的应用程序，我想使用ajax调用action类来感知json。我的ajax看起来像这样：

var data = {{userName:"userName",password:"password",userId:"userId"},
{userName:"userName",password:"password",userId:"userId"},
{userName:"userName",password:"password",userId:"userId"}
}
 var users= JSON.stringify(data);
                            $.ajax({
                                data: users,
                                type: "POST", 
                                url: "http://localhost:8080/Example_Project/Example.action",
                                contentType: "application/json",
                                dataType: "json" 

                                 })
Action.class





public class ExampleAction extends ActionSupport
                {
                private List<User> users;

                 public List<User> getUsers() {
                return users;
            }
             public void setUsers(List<User> users) {
                this.users = users;
            }

            public String addUsers(){

            //code to inser user list
            return "success";
            }
                }

User.java       




 public class User{

                private String ;//getters and setters for it
                private String password;//getters and setters for it
                private Integer userId;//getters and setters for it

                }

struts.xml





   <struts>
        <package name="default" extends="struts-default,json-default" >
            <action name="Example" class="com.json.action.ExampleAction" method="addUsers">
                    <result name="success">/success.jsp</result>
            </action>

        </package>
    </struts>

我正在使用struts2-core 2.3.1.2，struts2-json-plugin 2.3.1.2和json-rpc 1.0。如何在动作类中获取用户数据。使用上面的代码我在用户变量中得到null动作类。请帮助。

Answer 1

您需要在struts.xml中定义结果类型，如下所示。

   <result type="json" />

如果您仍然遇到任何问题，请告诉我

如何通过ajax调用在struts 2动作类中获取json？

1 个答案: