java原生http请求post

来源：互联网发布：雅思6 知乎编辑：程序博客网时间：2024/06/07 08:10
java原生http请求post,需要的朋友可以参考下。
import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.HttpURLConnection;import java.net.URL;public class HttpUtils {public static String sendPost(String uri, String charset) {String result = null;InputStream in = null;try {URL url = new URL(uri);HttpURLConnection urlcon = (HttpURLConnection) url.openConnection();urlcon.setRequestMethod("POST");urlcon.connect();// 获取连接in = urlcon.getInputStream();BufferedReader buffer = new BufferedReader(new InputStreamReader(in, charset));StringBuffer bs = new StringBuffer();String line = null;while ((line = buffer.readLine()) != null) {bs.append(line);}result = bs.toString();} catch (Exception e) {System.out.println("[请求异常][地址：" + uri + "][错误信息：" + e.getMessage()+ "]");} finally {try {if (null != in)in.close();} catch (Exception e2) {System.out.println("[关闭流异常][错误信息：" + e2.getMessage() + "]");}}return result;}/** *  * @param uri * @param param *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。 * @param charset * @return */public static String sendPost(String uri, String param, String charset) {String result = null;PrintWriter out = null;InputStream in = null;try {URL url = new URL(uri);HttpURLConnection urlcon = (HttpURLConnection) url.openConnection();urlcon.setDoInput(true);urlcon.setDoOutput(true);urlcon.setUseCaches(false);urlcon.setRequestMethod("POST");urlcon.connect();// 获取连接out = new PrintWriter(urlcon.getOutputStream());out.print(param);out.flush();in = urlcon.getInputStream();BufferedReader buffer = new BufferedReader(new InputStreamReader(in, charset));StringBuffer bs = new StringBuffer();String line = null;while ((line = buffer.readLine()) != null) {bs.append(line);}result = bs.toString();} catch (Exception e) {System.out.println("[请求异常][地址：" + uri + "][参数：" + param + "][错误信息："+ e.getMessage() + "]");} finally {try {if (null != in)in.close();if (null != out)out.close();} catch (Exception e2) {System.out.println("[关闭流异常][错误信息：" + e2.getMessage() + "]");}}return result;}}
0 0