struts2 使用注解方式配置

1、导入convention 包

2、java：

package com.struts.base.hello;





import java.io.IOException;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.List;





import javax.servlet.http.HttpServletResponse;





import net.sf.json.JSONArray;





import org.apache.struts2.ServletActionContext;

import org.apache.struts2.convention.annotation.Action;

import org.apache.struts2.convention.annotation.Namespace;

import org.apache.struts2.convention.annotation.ParentPackage;

import org.apache.struts2.convention.annotation.Result;





import com.opensymphony.xwork2.ActionSupport;

import com.struts.base.model.User;





@Namespace("/wangh/test")

@ParentPackage("struts-default")

@Action(value = "mytest", results = { @Result(name = "success", location = "/base/convention/test.jsp") })

public class TestAction extends ActionSupport {





@Override

public String execute() throws Exception {

// List<User> users = new ArrayList<User>();

// for (int i = 0; i < 3; i++) {

// User user = new User();

// user.setUserName("zhanghua" + i);

// user.setPWD("pwd" + i);

// users.add(user);

// }

//

// // 获得response

// HttpServletResponse response = ServletActionContext.getResponse();

// response.setContentType("text/html");

// PrintWriter pw = null;

// try {

// pw = response.getWriter();

// pw.print(JSONArray.fromObject(users).toString());

// return "success";

// } catch (Throwable e) {

// e.printStackTrace();

// } finally {

// if (pw != null) {

// pw.close();

// }

// }

return SUCCESS;

}





@Action(value = "outjson")

public void outJSON() {

List<User> users = new ArrayList<User>();

for (int i = 0; i < 3; i++) {

User user = new User();

user.setUserName("zhanghua" + i);

user.setPWD("pwd" + i);

users.add(user);

}





// 获得response

HttpServletResponse response = ServletActionContext.getResponse();

response.setContentType("text/html");

PrintWriter pw = null;

try {

pw = response.getWriter();

pw.print(JSONArray.fromObject(users).toString());

pw.flush();

} catch (IOException e) {

e.printStackTrace();

} finally {

if (pw != null) {

pw.close();

}

}

}

}

注意方法注解访问方式  ：

http://localhost:8080/strutsDemo/wangh/test/outjson.action

-----完