android--使用Struts2服务端与android交互
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了android--使用Struts2服务端与android交互，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含7809字，纯文字阅读大概需要12分钟。
内容图文
一，服务器端：
web.xml文件：
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
struts.xml文件：
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
Action类：
package com.shao.action;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import com.google.gson.Gson;
import com.opensymphony.xwork2.ActionSupport;
import com.shao.domain.Music;
public
class
JSONAction extends ActionSupport implements ServletRequestAware,
ServletResponseAware {
/*
*
*
*/
private
static final long serialVersionUID = -3604892179657815531L;
private HttpServletRequest request;
private HttpServletResponse response;
private String format;
public String getFormat() {
return format;
}
publicvoid setFormat(String format) {
this.format = format;
}
@Override
publicvoid setServletRequest(HttpServletRequest request) {
// TODO Auto-generated method stub this.request = request;
}
@Override
publicvoid setServletResponse(HttpServletResponse response) {
// TODO Auto-generated method stub this.response = response;
}
publicvoid json(){
List<Music> list = new ArrayList<Music>();
// JsonArray jsonArray = new JsonArray();
// JsonObject jsonObject = new JsonObject();
Gson gson = new Gson();
Music m1 = new Music();
m1.setId(1);
m1.setAuthor("游鸿明");
m1.setName("白色恋人");
m1.setTime("04:01");
list.add(m1);
Music m2 = new Music();
m2.setId(2);
m2.setAuthor("陈奕迅");
m2.setName("淘汰");
m2.setTime("04:44");
list.add(m2);
Music m3 = new Music();
m3.setId(3);
m3.setAuthor("谢霆锋");
m3.setName("黄种人");
m3.setTime("04:24");
list.add(m3);
java.lang.reflect.Type type = new com.google.gson.reflect.TypeToken<List<Music>>() {
}.getType();
String beanListToJson = gson.toJson(list,type);
System.out.println("GSON-->"+beanListToJson);
try {
response.setCharacterEncoding("GBK");
//response.setContentType("text/xml;charset=utf-8"); this.response.getWriter().write(beanListToJson);
} catch (IOException e) {
e.printStackTrace();
}
}
}
这个Music实体类，android客户端也用到。
package com.shao.domain;
public
class
Music {
private
Integer id;
private
String name;
private
String time;
private
String author;
public
Integer getId() {
return
id;
}
public
void
setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
publicvoid setName(String name) {
this.name = name;
}
public String getTime() {
return time;
}
publicvoid setTime(String time) {
this.time = time;
}
public String getAuthor() {
return author;
}
publicvoid setAuthor(String author) {
this.author = author;
}
}
二，android客户端：
Activity类：
package com.shao.main;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;
public
class
JsonClientActivity extends Activity {
/*
* Called when the activity is first created.
*/
private
Button update;
private
ListView listView;
@Override
public
void
onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
update = (Button) findViewById(R.id.update);
listView = (ListView) findViewById(R.id.list);
update.setOnClickListener(new OnClickListener() {
@Override
publicvoid onClick(View v) {
// TODO Auto-generated method stub
String urlStr="http://10.0.2.2:8080/Client/getjson.action";
String result = GsonUtil.getJson(urlStr);
List<Music> list = GsonUtil.getListFromJson(result);
List<Map<String,Object>> data = getAdapterData(list);
SimpleAdapter adapter =new SimpleAdapter(JsonClientActivity.this, data, R.layout.list, new String[]{"name","author","time"}, newint[]{R.id.name,R.id.author,R.id.time});
listView.setAdapter(adapter);
//listView. }
});
}
private List<Map<String,Object>> getAdapterData(List list){
List<Map<String,Object>> data = new ArrayList<Map<String,Object>>();
for(int i=0;i<list.size();i++){
Map<String,Object> map = new HashMap<String, Object>();
Music music= (Music)list.get(i);
map.put("name",music.getName());
map.put("author", music.getAuthor());
map.put("time",music.getTime());
data.add(map);
}
return data;
}
}
package com.shao.main;
import java.net.URI;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import com.google.gson.Gson;
public
class
GsonUtil {
public
static
String getJson(String url){
HttpClient client = new DefaultHttpClient();
HttpPost request;
try {
request = new HttpPost(new URI(url));
HttpResponse response = client.execute(request);
// 判断请求是否成功 if (response.getStatusLine().getStatusCode() == 200) { //200表示请求成功
HttpEntity entity = response.getEntity();
if(entity!=null){
String beanListToJson = EntityUtils.toString(entity,"GBK");
return beanListToJson;
}
}
} catch (Exception e) {
// TODO: handle exception }
returnnull;
}
publicstatic List<Music> getListFromJson(String json){
java.lang.reflect.Type type = new com.google.gson.reflect.TypeToken<List<Music>>() {
}.getType();
Gson gson = new Gson();
List<Music> list = gson.fromJson(json, type);
return list;
}
}
list.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:id="@+id/name" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="name" /> <TextView android:id="@+id/author" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/name" android:paddingTop="5px" android:text="author" > </TextView> <TextView android:id="@+id/time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/name" android:layout_alignTop="@id/author" android:layout_alignParentRight="true" android:text="time"> </TextView> </RelativeLayout>
原文：http://www.cnblogs.com/zhujiabin/p/4458397.html
内容总结
以上是互联网集市为您收集整理的android--使用Struts2服务端与android交互全部内容，希望文章能够帮你解决android--使用Struts2服务端与android交互所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。
来源：【匿名】