http接口调用-白红宇

http接口调用

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发布时间：2019-06-06

本文共 7098 字，大约阅读时间需要 23 分钟。

import org.testng.annotations.Test;

public class HttpTest {

String creatOrderUrl="http://xxx.xxx.net/scriptParams/runScripts?ids=2303";

@Test  //可以直接运行了，注意调用http接口，都不能继承别的接口（例如hsf）， public void testCrestOrder() {
      System.out.println("url=="+creatOrderUrl);//     httpRequest(creatOrderUrl);     //System.out.println("url2=="+httpRequest(creatOrderUrl)); }

/**get请求*/ public static String httpRequest(String req_url) {
      StringBuffer buffer = new StringBuffer();     try {
          URL url = new URL(req_url);         HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();         httpUrlConn.setDoOutput(false);         httpUrlConn.setDoInput(true);         httpUrlConn.setUseCaches(false);         httpUrlConn.setRequestMethod("GET");         httpUrlConn.connect();         // 将返回的输入流转换成字符串         InputStream inputStream = httpUrlConn.getInputStream();         InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");         BufferedReader bufferedReader = new BufferedReader(inputStreamReader);         String str = null;         while ((str = bufferedReader.readLine()) != null) {
              buffer.append(str);         }         bufferedReader.close();         inputStreamReader.close();         // 释放资源         inputStream.close();         inputStream = null;         httpUrlConn.disconnect();     } catch (Exception e) {
          System.out.println(e.getStackTrace());     }     return buffer.toString(); }

/**POST 请求  *  */ /**  * 向指定 URL 发送POST方法的请求  *  * @param url  *            发送请求的 URL  * @param param  *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。  * @param isproxy  *               是否使用代理模式  * @return 所代表远程资源的响应结果  */ public static String sendPost(String url, String param,boolean isproxy) {
      OutputStreamWriter out = null;     BufferedReader in = null;     String result = "";     try {
          URL realUrl = new URL(url);         HttpURLConnection conn = null;         if(isproxy){//使用代理模式             @SuppressWarnings("static-access")             Proxy proxy = new Proxy(Proxy.Type.DIRECT.HTTP, new InetSocketAddress(proxyHost, proxyPort));             conn = (HttpURLConnection) realUrl.openConnection(proxy);         }else{
              conn = (HttpURLConnection) realUrl.openConnection();         }         // 打开和URL之间的连接         // 发送POST请求必须设置如下两行         conn.setDoOutput(true);         conn.setDoInput(true);         conn.setRequestMethod("POST");    // POST方法         // 设置通用的请求属性         conn.setRequestProperty("accept", "*/*");         conn.setRequestProperty("connection", "Keep-Alive");         conn.setRequestProperty("user-agent",                 "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");         conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");         conn.connect();         // 获取URLConnection对象对应的输出流         out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");         // 发送请求参数         out.write(param);         // flush输出流的缓冲         out.flush();         // 定义BufferedReader输入流来读取URL的响应         in = new BufferedReader(                 new InputStreamReader(conn.getInputStream()));         String line;         while ((line = in.readLine()) != null) {
              result += line;         }     } catch (Exception e) {
          System.out.println("发送 POST 请求出现异常！"+e);         e.printStackTrace();     }     //使用finally块来关闭输出流、输入流     finally{
          try{
              if(out!=null){
                  out.close();             }             if(in!=null){
                  in.close();             }         }         catch(IOException ex){
              ex.printStackTrace();         }     }     return result; } /**  * 发送Http post请求  *  * @param xmlInfo  *            json转化成的字符串  * @param URL  *            请求url  * @return 返回信息  */ public static String doHttpPost(String xmlInfo, String URL) {
      System.out.println("发起的数据:" + xmlInfo);     byte[] xmlData = xmlInfo.getBytes();     InputStream instr = null;     java.io.ByteArrayOutputStream out = null;     try {
          URL url = new URL(URL);         URLConnection urlCon = url.openConnection();         urlCon.setDoOutput(true);         urlCon.setDoInput(true);         urlCon.setUseCaches(false);         urlCon.setRequestProperty("content-Type", "application/json");         urlCon.setRequestProperty("charset", "utf-8");         urlCon.setRequestProperty("Content-length",                 String.valueOf(xmlData.length));         System.out.println(String.valueOf(xmlData.length));         DataOutputStream printout = new DataOutputStream(                 urlCon.getOutputStream());         printout.write(xmlData);         printout.flush();         printout.close();         instr = urlCon.getInputStream();         byte[] bis = IOUtils.toByteArray(instr);         String ResponseString = new String(bis, "UTF-8");         if ((ResponseString == null) || ("".equals(ResponseString.trim()))) {
              System.out.println("返回空");         }         System.out.println("返回数据为:" + ResponseString);         return ResponseString;     } catch (Exception e) {
          e.printStackTrace();         return "0";     } finally {
          try {
              out.close();             instr.close();         } catch (Exception ex) {
              return "0";         }     } } 方法二： /**  * 向指定 URL 发送POST方法的请求  *  * @param url  *            发送请求的 URL  * @param param  *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。  * @return 所代表远程资源的响应结果  */ public static String sendPostNew(String url, String param) {
      PrintWriter out = null;     BufferedReader in = null;     String result = "";     try {
          URL realUrl = new URL(url);         // 打开和URL之间的连接         URLConnection conn = realUrl.openConnection();         // 设置通用的请求属性         conn.setRequestProperty("accept", "*/*");         conn.setRequestProperty("connection", "Keep-Alive");         conn.setRequestProperty("user-agent",                 "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");         // 发送POST请求必须设置如下两行         conn.setDoOutput(true);         conn.setDoInput(true);         // 获取URLConnection对象对应的输出流         out = new PrintWriter(conn.getOutputStream());         // 发送请求参数         out.print(param);         // flush输出流的缓冲         out.flush();         // 定义BufferedReader输入流来读取URL的响应         in = new BufferedReader(                 new InputStreamReader(conn.getInputStream()));         String line;         while ((line = in.readLine()) != null) {
              result += line;         }     } catch (Exception e) {
          System.out.println("发送 POST 请求出现异常！"+e);         e.printStackTrace();     }     //使用finally块来关闭输出流、输入流     finally{
          try{
              if(out!=null){
                  out.close();             }             if(in!=null){
                  in.close();             }         }         catch(IOException ex){
              ex.printStackTrace();         }     }     return result; } ｝ 注意事项：如果调用post接口，返回报错405（连接被拒绝），把post改成GET即可，原因是后台要求是GET请求，发送post请求肯定会被拒绝。