android利用httpclient实现post、get请求restful接口进行json和form表单数据提交等公共方法类
根据项目经验和自己常用的接口类型，编写了一个公共类，让原生android进行网络数据请求更加方便。
这个方法处理的情况如下：
1、利用httpclient协议进行通信（httpurlconnection 太类似）
2、进行post和get请求
3、接口接收参数有json格式和form表单格式的数据。
4、我会把接口形式也展现出来。至于怎样配置两种形式的restful接口。我就不说了
下面开始代码：
1、按钮调用不同的请求方式
可以看到我进行了四种方式的请求
按钮事件添加如下：
@Override
public void onClick(View viewid) {
// TODO Auto-generated method stub
switch (viewid.getId()) {
case R.id.btn11:
{intent.setClass(MainActivity.this, LoadProgressBar.class);
startActivity(intent);
break;}
case R.id.btn12:
{
String st="http://10.20.126.239:8089/gwm_web/services/Api/LoginPost";//json接口
Map
map.put("loginName", "dhj");
map.put("loginPw", "123456");
httpclient=new HttpClientClass(st, "POST", "JSON", map,handle);
httpclient.start();
break;}
case R.id.btn13:
{
String st="http://10.20.126.239:8089/ApiTest/rest/Api/LoginPost";//form表单接口
Map
map.put("loginName", "dhj");
map.put("loginPw", "123456");
httpclient=new HttpClientClass(st, "POST", "Form", map,handle);
httpclient.start();
break;}
case R.id.btn21:
{
String st="http://10.20.126.239:8089/gwm_web/services/Api/LoginGet/DHJ/123456";//json接口
Map
httpclient=new HttpClientClass(st, "GET", "JSON", map,handle);
httpclient.start();
break;}
case R.id.btn22:
{
String st="http://10.20.126.239:8089/ApiTest/rest/Api/LoginGet";//form表单接口
Map
map.put("loginName", "DHJ");
map.put("loginPw", "123456");
httpclient=new HttpClientClass(st, "GET", "Form", map,handle);
httpclient.start();
break;}
default:
break;
}
}
可以看到 httpclient=new HttpClientClass(st, "POST", "Form", map,handle);我是把公共类做成了子线程的形式，是不是又减轻你的工作量一点点，具体说一下参数的内容
st是你要连接的接口地址，第二个参数有post和get两种代表你是机进行post还是get请求。第三个参数代表是进行json格式数据提交还是form表单提交第四个参数主要是用来获取子线程返回结果的获取，子线程和主线程用handler进行通信。
下面就是看看我写的公共类
package com.dhj.base.network;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
public class HttpClientClass extends Thread {
private String requestStyle;
private String dataStyle;
private String url;
String result = null;
private Handler handle;
Map
/**
* @author gw00093437 dhj 2017.1.10
* @param url
* 接口地址
* @param requestStyle
* 请求类型GET\POST
* @param dataStyle
* 数据提交方式FORM\JSON
* @param map
* 数据源供转化解析
* @param handle
* 返回数据的存储
*/
public HttpClientClass(String url, String requestStyle, String dataStyle,
Map map,Handler handle) {
this.requestStyle = requestStyle;
this.dataStyle = dataStyle;
this.url = url;
this.map = map;
this.handle=handle;
}
@Override
public void run() {
// 创建httpclient对象
HttpClient httpclient = new DefaultHttpClient();
// 首先判断请求类型
if (requestStyle.equals("GET")) {
// GET方式
String param="";
Iterator it = map.keySet().iterator();
String key;
String value;
HttpGet get;
while (it.hasNext()) {
key = it.next().toString();
value = (String) map.get(key);
if(param==""){
param=key+"="+value;
}else{
param=param+"&"+key+"="+value;
}
}
BufferedReader in = null;
String content=null;
if(param==""){
get = new HttpGet(url);
}else{
get = new HttpGet(url+"?"+param);
}
try {
HttpResponse response=httpclient.execute(get);
in = new BufferedReader(new InputStreamReader(response.getEntity()
.getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
}
in.close();
content = sb.toString();
Message msg = new Message();
msg.obj= content;
handle.sendMessage(msg);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
// POST方式
HttpPost post = new HttpPost(url);
// 判断数据提交类型
if (dataStyle.equals("JSON")) {
// json数据类型进行提交
JSONObject jsonParam = new JSONObject();
Iterator it = map.keySet().iterator();
String key;
String value;
while (it.hasNext()) {
key = it.next().toString();
value = (String) map.get(key);
try {
jsonParam.put(key, value);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
StringEntity jsonentity = null;
try {
jsonentity = new StringEntity(jsonParam.toString(), "utf-8");
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}// 解决中文乱码问题
jsonentity.setContentEncoding("UTF-8");
jsonentity.setContentType("application/json");
post.setEntity(jsonentity);
HttpResponse response = null;
try {
response = httpclient.execute(post);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (response.getStatusLine().getStatusCode() == 200) {
// 第五步：从相应对象当中取出数据，放到entity当中
HttpEntity entity = response.getEntity();
BufferedReader reader = null;
try {
reader = new BufferedReader(
new InputStreamReader(entity.getContent()));
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
result = reader.readLine();
Message msg = new Message();
msg.obj= result;
handle.sendMessage(msg);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.d("dhj", "POST_JSON:" + result);
}
} else {
// form表单形式的数据进行提交 解析map数据
int size = map.size();
// 利用KeySet 迭代
List
Iterator it = map.keySet().iterator();
String key;
String value;
while (it.hasNext()) {
key = it.next().toString();
value = (String) map.get(key);
params.add(new BasicNameValuePair(key, value));
}
HttpEntity requestEntity = null;
try {
requestEntity = new UrlEncodedFormEntity(params);
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} // 将请求体放置到请求对象中
post.setEntity(requestEntity); // 执行请求对象 form表单的形式/
HttpResponse response = null;
try {
response = httpclient.execute(post);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (response.getStatusLine().getStatusCode() == 200) {
// 第五步：从相应对象当中取出数据，放到entity当中
HttpEntity entity = response.getEntity();
BufferedReader reader = null;
try {
reader = new BufferedReader(
new InputStreamReader(entity.getContent()));
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
result = reader.readLine();
Message msg = new Message();
msg.obj= result;
handle.sendMessage(msg);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.d("dhj", "POST_Form:" + result);
}
}
}
super.run();
}
}
如果想捕获每个节点的异常可以继续添加代码。详细我就不给大家解析了，自己能分析明白的。
给大家看一下我的接口：
1、json格式的接口
@Path("Api")
public class ApiTest {
@POST
@Path("LoginPost")
@Produces("application/json")
@Consumes( { "application/json" })
public JSONObject LoginPost(UserInfo user)
throws JSONException {
JSONObject o=new JSONObject();
o.put("Json_post_name", user.getLoginName());
System.out.println("Json_post_name:"+user.getLoginName()+"&&"+user.getLoginPw());
return o;
}
@GET
@Path("LoginGet/{loginName}/{loginPw}")
@Produces("application/json")
@Consumes( { "application/json" })
public JSONObject LoginGet(@PathParam("loginName") String loginName,@PathParam("loginPw") String loginPw)
throws JSONException {
JSONObject o=new JSONObject();
o.put("Json_get_name", loginName);
System.out.println("Json_get_name:"+loginName+"&&"+loginPw);
return o;
}
}
2、form表单格式的接口。spring mvc中的架构
@Controller
@RequestMapping("/Api")
public class PostApi {
@RequestMapping(value = "/LoginGet", method = RequestMethod.GET)
public JSONObject LoginGet( HttpServletRequest request,
HttpServletResponse response) throws IOException {
response.setCharacterEncoding("UTF-8");
String name=request.getParameter("loginName");
String pwd = request.getParameter("loginPw");
System.out.println("Form_GET：name"+name+"&&pwd"+pwd);
printJson(response,"name");
return null;
}
@RequestMapping(value = "/LoginPost", method = RequestMethod.POST)
public JSONObject LoginPost( HttpServletRequest request,
HttpServletResponse response) throws IOException {
response.setCharacterEncoding("UTF-8");
String name=request.getParameter("loginName");
String pwd = request.getParameter("loginPw");
System.out.println("Form_POST：name"+name+"&&pwd"+pwd);
printJson(response,"name");
return null;
}
private void printJson(HttpServletResponse response, String jsonStr) {
try {
response.setContentType("application/json;charset=UTF-8");
response.getWriter().print(jsonStr);
} catch (Exception e) {
e.printStackTrace();
}
}
}
get和post共四种情况、哈哈。不足之处多多包涵。时间匆忙只是自己进行验证没问题，没有进行更深的丰富，比如asp.net的web接口也包涵进来，用soap协议，进行json和xml数据通信等。大家自己丰富吧