Android客户端和Struts交互Json数据

服务器端接收客户端发来的json对象，解析该json对象的数据后，再给客户端反送一个封装了新的数据的json对象








Public class Action extends ActionSupport implements ServletRequestAware,ServletResponseAware{

private String Json;

private int age;

private String name;

private String password;

private HttpServletRequest request;

private HttpServletResponse response;




public void execute()

{

try{

JSONObject obj=new JSONObject(this.getJson())

this.setAge(obj.getInt("age"));

this.setName(obj.getString("name"));

this.setPassword(obj.getString("password"));




}catch(org.json.JSONException e)

{

e.printStack();

}

JSONObject object=new JSONObject();

object.put("age",22);

object.put("name",nikerlover);

object.put("password",12345);

JSONObject  tem=new JSONObject();//若需要传递数组，夹杂其他的杂项，可以用Map map=new HashMap<String,Object>()将数据封装好，创建List<Map<String,Object>>

list=new ArrayList<Map<String,Object>>(),然后，list.add(map);再用JSONObject进行封装，JSONObject和JSONArray可以相互嵌套，你懂的

JSONObject temp=new JSONObject();

try{

tem.put("user",object);

temp.put("json",tem);

response.setCharacterEncoding("UTF-8");

response.getWriter().write(temp.toString());

}catch(Exception e)

{

e.printStackTrace();

}

}

// Getter and Setter method

//public void setServletResponse(HttpServletResponse)

.

.




}




Android客户端：先给服务器发送一个封装好了的JSON对象，再等待服务器反送response对象，将response里的JSON对象获取并解析

pubic void OnCreate(Handler instance)

{

String Url="http://59.64.34.45/project/index.action";

HttpClient client=new DefaultHttpClient();

HttpPost post=new HttpPost(url);

List<NameValuePair> pair=new ArrayList<NameValuePair>()'

try{

JSONObject obj=new JSONObject();

obj.put("age",2);

obj.put("name",nikerlover);

obj.put("password",45667);

JSONObject json=new JSONObject();

pair.add(new BasicValueNamePair("json",obj.toString()));

post.setEntity(new UrlEncodedFormEntity(pair,HTTP.UTF_8));

HttpResponse response=client.execute(post);

if(response.getStatusLine().getStatusCode()==200)

{

String responseStr=EntityUtils.toString(response.getEntity());

JSONObject json=new JSONObject(responseStr).getJSONObject("json");

JSONObject object=json.getJSONObject("user");


int Age=obj.getInt("age");

String Name=obj.getString("name");

String Password=obj.getString("password");


}

}

}

本篇文章来源于 Linux公社网站(www.linuxidc.com)  原文链接：http://www.linuxidc.com/Linux/2011-10/45151.htm