Android -- 获取接口数据的三个方法

时间:2023-03-09 17:06:42
Android -- 获取接口数据的三个方法

1.   compile 'com.loopj.android:android-async-http:1.4.9':

  AsyncHttpClient client = new AsyncHttpClient();
RequestParams params = new RequestParams();
params.addHeader(HTTP.CONTENT_TYPE,
"application/x-www-form-urlencoded;charset=UTF-8");
params.put("loginer_id", "4363");
params.put("tzcodelist", "0047,0046,0043");
params.put("downlimit", "1");
params.put("uplimit", "100"); client.post(url, params, new JsonHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, String response) {
super.onSuccess(statusCode, headers, response);
Toast.makeText(getApplication(),"同步数据完成",Toast.LENGTH_SHORT).show();
Toast.makeText(getApplication(), response, Toast.LENGTH_LONG).show(); new Handler().postDelayed(new Runnable() {
@Override
public void run() {
//在主线程中执行
Toast.makeText(getApplication(),"同步数据完成",Toast.LENGTH_SHORT).show();
}
}, 500); } @Override
public void onFailure(int statusCode, Header[] headers, String responseString, Throwable throwable) {
super.onFailure(statusCode, headers, responseString, throwable);
Toast.makeText(getApplication(), "同步数据失败", Toast.LENGTH_LONG).show();
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
//在主线程中执行
Toast.makeText(getApplication(), "同步数据失败", Toast.LENGTH_LONG).show();
}
}, 50); } });

2.   compile 'org.xutils:xutils:3.2.2':

 String url = "http://222.169.11.226:7000/WebServiceAndroidcm.asmx/GetCminfoByTzcodeList";
// String url = "http://123.232.120.76:6011/api/UserInfo?xq_id=1";
RequestParams params = new RequestParams(url);
params.addHeader(HTTP.CONTENT_TYPE,
"application/x-www-form-urlencoded;charset=UTF-8");
params.addBodyParameter("loginer_id", "4363");
params.addBodyParameter("tzcodelist", "0047,0046,0043");
params.addBodyParameter("downlimit", "1");
params.addBodyParameter("uplimit", "100"); x.http().post(params, new Callback.CommonCallback<String>() { @Override
public void onCancelled(Callback.CancelledException arg0) { Toast.makeText(getApplication(), "cancle", Toast.LENGTH_SHORT).show();
} // 注意:如果是自己onSuccess回调方法里写了一些导致程序崩溃的代码,也会回调道该方法,因此可以用以下方法区分是网络错误还是其他错误
// 还有一点,网络超时也会也报成其他错误,还需具体打印出错误内容比较容易跟踪查看
@Override
public void onError(Throwable ex, boolean isOnCallback) { Toast.makeText(x.app(), "fuk", Toast.LENGTH_SHORT).show();
if (ex instanceof HttpException) { // 网络错误
HttpException httpEx = (HttpException) ex;
int responseCode = httpEx.getCode();
String responseMsg = httpEx.getMessage();
String errorResult = httpEx.getResult();
Toast.makeText(getApplication(), errorResult, Toast.LENGTH_SHORT).show();
// ...
} else { // 其他错误
// ...
Toast.makeText(x.app(), "funck you", Toast.LENGTH_SHORT).show();
} } // 不管成功或者失败最后都会回调该接口
@Override
public void onFinished() {
// Toast.makeText(getApplication(), "llafda", Toast.LENGTH_SHORT).show();
} @Override
public void onSuccess(String arg0) {
Toast.makeText(getApplication(), "chegngonng le ", Toast.LENGTH_SHORT).show();
} });

3. 自带的http:

运用原生Java Api发送简单的Get请求、Post请求步骤

  1. 通过统一资源定位器(java.net.URL)获取连接器(java.net.URLConnection)
  2. 设置请求的参数
  3. 发送请求
  4. 以输入流的形式获取返回内容
  5. 关闭输入流
package me.http;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;
import java.net.URLConnection;
import java.util.Iterator;
import java.util.Map; public class HttpRequestor { private String charset = "utf-8";
private Integer connectTimeout = null;
private Integer socketTimeout = null;
private String proxyHost = null;
private Integer proxyPort = null; /**
* Do GET request
* @param url
* @return
* @throws Exception
* @throws IOException
*/
public String doGet(String url) throws Exception { URL localURL = new URL(url); URLConnection connection = this.openConnection(localURL);
HttpURLConnection httpURLConnection = (HttpURLConnection)connection; httpURLConnection.setRequestProperty("Accept-Charset", charset);
httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); InputStream inputStream = null;
InputStreamReader inputStreamReader = null;
BufferedReader reader = null;
StringBuffer resultBuffer = new StringBuffer();
String tempLine = null;
//响应失败
if (httpURLConnection.getResponseCode() >= 300) {
throw new Exception("HTTP Request is not success, Response code is " + httpURLConnection.getResponseCode());
} try {
inputStream = httpURLConnection.getInputStream();
inputStreamReader = new InputStreamReader(inputStream);
reader = new BufferedReader(inputStreamReader); while ((tempLine = reader.readLine()) != null) {
resultBuffer.append(tempLine);
} } finally { if (reader != null) {
reader.close();
} if (inputStreamReader != null) {
inputStreamReader.close();
} if (inputStream != null) {
inputStream.close();
} } return resultBuffer.toString();
} /**
* Do POST request
* @param url
* @param parameterMap
* @return
* @throws Exception
*/
public String doPost(String url, Map parameterMap) throws Exception { /* Translate parameter map to parameter date string */
StringBuffer parameterBuffer = new StringBuffer();
if (parameterMap != null) {
Iterator iterator = parameterMap.keySet().iterator();
String key = null;
String value = null;
while (iterator.hasNext()) {
key = (String)iterator.next();
if (parameterMap.get(key) != null) {
value = (String)parameterMap.get(key);
} else {
value = "";
} parameterBuffer.append(key).append("=").append(value);
if (iterator.hasNext()) {
parameterBuffer.append("&");
}
}
} System.out.println("POST parameter : " + parameterBuffer.toString()); URL localURL = new URL(url); URLConnection connection = this.openConnection(localURL);
HttpURLConnection httpURLConnection = (HttpURLConnection)connection; httpURLConnection.setDoOutput(true);
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setRequestProperty("Accept-Charset", charset);
httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
httpURLConnection.setRequestProperty("Content-Length", String.valueOf(parameterBuffer.length())); OutputStream outputStream = null;
OutputStreamWriter outputStreamWriter = null;
InputStream inputStream = null;
InputStreamReader inputStreamReader = null;
BufferedReader reader = null;
StringBuffer resultBuffer = new StringBuffer();
String tempLine = null; try {
outputStream = httpURLConnection.getOutputStream();
outputStreamWriter = new OutputStreamWriter(outputStream); outputStreamWriter.write(parameterBuffer.toString());
outputStreamWriter.flush();
//响应失败
if (httpURLConnection.getResponseCode() >= 300) {
throw new Exception("HTTP Request is not success, Response code is " + httpURLConnection.getResponseCode());
}
//接收响应流
inputStream = httpURLConnection.getInputStream();
inputStreamReader = new InputStreamReader(inputStream);
reader = new BufferedReader(inputStreamReader); while ((tempLine = reader.readLine()) != null) {
resultBuffer.append(tempLine);
} } finally { if (outputStreamWriter != null) {
outputStreamWriter.close();
} if (outputStream != null) {
outputStream.close();
} if (reader != null) {
reader.close();
} if (inputStreamReader != null) {
inputStreamReader.close();
} if (inputStream != null) {
inputStream.close();
} } return resultBuffer.toString();
} private URLConnection openConnection(URL localURL) throws IOException {
URLConnection connection;
if (proxyHost != null && proxyPort != null) {
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyHost, proxyPort));
connection = localURL.openConnection(proxy);
} else {
connection = localURL.openConnection();
}
return connection;
} /**
* Render request according setting
* @param request
*/
private void renderRequest(URLConnection connection) { if (connectTimeout != null) {
connection.setConnectTimeout(connectTimeout);
} if (socketTimeout != null) {
connection.setReadTimeout(socketTimeout);
} } /*
* Getter & Setter
*/
public Integer getConnectTimeout() {
return connectTimeout;
} public void setConnectTimeout(Integer connectTimeout) {
this.connectTimeout = connectTimeout;
} public Integer getSocketTimeout() {
return socketTimeout;
} public void setSocketTimeout(Integer socketTimeout) {
this.socketTimeout = socketTimeout;
} public String getProxyHost() {
return proxyHost;
} public void setProxyHost(String proxyHost) {
this.proxyHost = proxyHost;
} public Integer getProxyPort() {
return proxyPort;
} public void setProxyPort(Integer proxyPort) {
this.proxyPort = proxyPort;
} public String getCharset() {
return charset;
} public void setCharset(String charset) {
this.charset = charset;
} }

异步get(石秦):

 new Thread(new Runnable() {
String url = "http://123.232.120.76:6011/api/Login?user_name=zll&pwd=1";
Message msg = new Message();
@Override
public void run() {
try {
URL urlString = new URL(url);
//打开url
HttpURLConnection connection = (HttpURLConnection)urlString.openConnection();
//请求超时
connection.setConnectTimeout(2000);
//读取超时
connection.setReadTimeout(2000); //获取请求成功响应码
if (connection.getResponseCode() == 200) { InputStream is = connection.getInputStream();
String json = StreamUtil.streamtoString(is);
// json.replace("[", "");
// json.replace("]", "");
Log.d("json", json);
System.out.print(json);
JSONObject jsonObject = new JSONObject(json); }
} catch (MalformedURLException e) {
e.printStackTrace();
msg.what = URLERROR;
Log.d("url", "aaaa");
} catch (IOException e) {
e.printStackTrace();
msg.what = IOERROR;
Log.d("io", "qqqqq");
} catch (JSONException e) {
e.printStackTrace();
msg.what = JSONERROR;
Log.d("jsonfailure", "qqqqq");
}
}
}).start();