接口调用"/>
restful风格的http接口调用
说明:
参数1:http请求的访问路径
参数2:请求方式 post get patch delete
参数3:请求内容,xml或json格式的报文,字符串都可以
附代码:
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.HttpURLConnection; import java.URL;/** * restful接口调用工具 */ public class RestfulUtil {/** * 连接hlfront * @param url: * @param param:请求方式 * @param message:报文 * @return */ public static String dealCon(String url, String param, String message) throws IOException {param = param.toUpperCase();// POST DELETE PATCH GET StringBuffer result = new StringBuffer();//返回 URL restServiceURL = new URL(url);HttpURLConnection httpConnection = (HttpURLConnection) restServiceURL.openConnection();httpConnection.setDoOutput(true);//允许输出 httpConnection.setDoInput(true);//允许输入 httpConnection.setUseCaches(false);//不用缓存 httpConnection.setRequestMethod(param);httpConnection.setRequestProperty("Charset", "UTF-8");httpConnection.setRequestProperty("Accept", "application/json"); // httpConnection.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + UUID.randomUUID().toString()); if("POST".equals(param)){//传递参数 // String input = URLEncoder.encode(message, "UTF-8"); String input = message;OutputStream outputStream = httpConnection.getOutputStream();outputStream.write(input.getBytes());outputStream.flush();}if (httpConnection.getResponseCode() != 200) {throw new RuntimeException("HTTP "+ param +" Request Failed with Error code : " + httpConnection.getResponseCode());}BufferedReader responseBuffer = new BufferedReader(new InputStreamReader((httpConnection.getInputStream())));String output = "";while ((output = responseBuffer.readLine()) != null) {result.append(output);}httpConnection.disconnect();return result.toString();}}
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restful风格的http接口调用
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