android put请求,android中post,put,get,delete简洁写法-优快云博客

这个Java类展示了如何使用HttpURLConnection进行HTTP的GET、POST、PUT和DELETE操作。每个方法都包括设置超时、请求方法、写入请求数据以及处理响应结果的过程。通过输入流读取服务器响应并转换为字符串。

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public class HttpUtil {

private static final String TAG = HttpUtil.class.getSimpleName();

public static String get(final String strUrl) {

try {

URL url = new URL(strUrl);

HttpURLConnection conn = (HttpURLConnection)

url.openConnection();

conn.setReadTimeout(5000);

conn.setRequestMethod("GET");

int response = conn.getResponseCode();

if(response == HttpURLConnection.HTTP_OK) {

InputStream stream = conn.getInputStream();

return dealResponseResult(stream);

}else{

return null;

}

} catch (IOException e) {

e.printStackTrace();

}

return null;

}

public static String doDelete(String urlStr,String params){

try{

URL url = new URL(urlStr);

HttpURLConnection conn = (HttpURLConnection)url.openConnection();

conn.setReadTimeout(5000);

conn.setRequestMethod("DELETE");

//获得一个输出流，向服务器写入数据

OutputStream outputStream = conn.getOutputStream();

outputStream.write(params.getBytes());

int response = conn.getResponseCode();

if(response == HttpURLConnection.HTTP_OK) {

InputStream stream = conn.getInputStream();

return dealResponseResult(stream);

}else{

Log.d(TAG,"<<<<

return null;

}

}catch (IOException ex) {

ex.printStackTrace();

}

return null;

}

public static String post(final String strUrl, String params) {

try {

URL url = new URL(strUrl);

HttpURLConnection conn = (HttpURLConnection)url.openConnection();

conn.setReadTimeout(5000);

conn.setRequestMethod("POST");

//设置请求体的类型是文本类型

conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");

//设置请求体的长度

conn.setRequestProperty("Content-Length",String.valueOf(params.getBytes().length));

//获得一个输出流，向服务器写入数据

OutputStream outputStream = conn.getOutputStream();

outputStream.write(params.getBytes());

int response = conn.getResponseCode();

if(response == HttpURLConnection.HTTP_OK) {

InputStream stream = conn.getInputStream();

return dealResponseResult(stream);

}else{

Log.d(TAG,"<<<<

return null;

}

} catch (IOException e) {

e.printStackTrace();

}

return null;

}

public static String put(final String strUrl, String params) {

try{

URL url = new URL(strUrl);

HttpURLConnection conn = (HttpURLConnection)url.openConnection();

conn.setReadTimeout(5000);

conn.setRequestMethod("PUT");

//获得一个输出流，向服务器写入数据

OutputStream outputStream = conn.getOutputStream();

outputStream.write(params.getBytes());

int response = conn.getResponseCode();

if(response == HttpURLConnection.HTTP_OK) {

InputStream stream = conn.getInputStream();

return dealResponseResult(stream);

}else{

Log.d(TAG,"<<<<

return null;

}

}catch (IOException ex) {

ex.printStackTrace();

}

return null;

}

private static String dealResponseResult(InputStream stream) throws IOException{

StringBuffer buffer = new StringBuffer();

BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(stream));

String str = null;

while ((str = bufferedReader.readLine()) != null) {

buffer.append(str);

}

return buffer.toString();

}

Http的操作可以分以下几部:

对于get请求可以分以下几部:创建URL

生成httpURLConnection

设置read timeout

设置那个request method

获取response code

获取服务器的inputStream

对于post,delete,put请求可以分以下几部:创建URL

生成httpURLConnection

设置read timeout

设置那个request method

用outputStream往服务器上写数据

获取response code

获取服务器的inputStream