http介面開發及呼叫
阿新 • • 發佈:2019-02-10
一般用http的post,儘量不用get;
開發中一般都使用org.apache.http的jar包,比較成熟,方便,易用;當然了,直接用java提供的也行
package com.XXXX.XXXX.service; import java.io.File; import java.io.IOException; import java.nio.charset.Charset; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.entity.ContentType; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.mime.HttpMultipartMode; import org.apache.http.entity.mime.MultipartEntityBuilder; import org.apache.http.impl.client.HttpClientBuilder; import org.apache.http.protocol.HTTP; import org.apache.http.util.EntityUtils; /* * Http介面 post * 接收下屬客戶端上傳樣本,儲存樣本檔案 * apache官網可以下載最新的jar包和demo * http://hc.apache.org/downloads.cgi */ public class TestSampleUpload4client { public static void main(String[] args) throws ClientProtocolException, IOException{ String url = "http://192.168.1.6:8010/xxxxxxxxxxx/sample/fileUpload.action"; // 配置要 POST 的資料 MultipartEntityBuilder multipartEntityBuilder = MultipartEntityBuilder.create(); // 設定為瀏覽器相容模式 multipartEntityBuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE); // 設定請求的編碼格式 multipartEntityBuilder.setCharset(Charset.forName(HTTP.UTF_8)); ContentType TEXT_PLAIN = ContentType.create("text/plain", Charset.forName(HTTP.UTF_8)); //設定一致的編碼格式極其重要,否則容易出現亂碼,不管客戶端是以什麼語言什麼方式進行呼叫,必須讓其編碼格式與接收端一致; multipartEntityBuilder.addTextBody("userName", "admin",TEXT_PLAIN); multipartEntityBuilder.addTextBody("psd", "admin",TEXT_PLAIN); multipartEntityBuilder.addTextBody("mac", "ma2343344f1333",TEXT_PLAIN); multipartEntityBuilder.addTextBody("md5", "afy67juu8776a",TEXT_PLAIN); multipartEntityBuilder.addTextBody("type", "sample",TEXT_PLAIN); //檔案路徑 File file = new File("D:\\glpt\\abc.txt"); multipartEntityBuilder.addBinaryBody("file", file); /* * 以下的引數提交方式也行 StringBody userName = new StringBody("admin", ContentType.create( "text/plain", Consts.UTF_8)); StringBody password = new StringBody("admin", ContentType.create( "text/plain", Consts.UTF_8)); // 把檔案轉換成流物件FileBody FileBody bin = new FileBody(file); multipartEntityBuilder.addPart("username", userName); multipartEntityBuilder.addPart("password", password); multipartEntityBuilder.addPart("file", bin); */ post(url,multipartEntityBuilder); } public static void post(String url,MultipartEntityBuilder multipartEntityBuilder) throws ClientProtocolException, IOException{ // 建立HttpPost物件 HttpPost httppost = new HttpPost(url); HttpClient httpclient = HttpClientBuilder.create().build(); // 生成 HTTP POST 實體 HttpEntity httpEntity = multipartEntityBuilder.build(); httppost.setEntity(httpEntity); // 傳送Post,並返回一個HttpResponse物件 HttpResponse httpResponse = httpclient.execute(httppost); // 以下兩行可以得到指定的Header // Header header = httpResponse.getFirstHeader("Content-Length"); // String headerVal = header.getValue(); HttpEntity httpEntity2 = httpResponse.getEntity(); System.out.println("httpResponse.getStatusLine().getStatusCode():"+httpResponse.getStatusLine().getStatusCode()); // 如果狀態碼為200,就是正常返回 if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { String result = EntityUtils.toString(httpEntity2); // 得到返回的字串 System.out.println(result); // 如果是下載檔案,可以用response.getEntity().getContent()返回InputStream }else if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_MOVED_TEMPORARILY) { // 如果狀態碼為302 String locationUrl = httpResponse.getLastHeader("location").getValue(); post(locationUrl,multipartEntityBuilder); }else { String result = EntityUtils.toString(httpEntity2); // 得到返回的字串 System.out.println(result); } } } /** *另一種處理方式 * @param args * @throws UnsupportedEncodingException * @throws IOException * @throws ClientProtocolException public static void main(String[] args) throws ClientProtocolException, IOException{ // TODO Auto-generated method stub // POST的URL String url = "http://192.168.10.203:8010/manageplatform/sample/sampleUpload.action"; // 建立HttpPost物件 HttpPost httppost = new HttpPost(url); // 建立一個NameValuePair陣列,用於儲存欲傳送的引數 List<NameValuePair> params = new ArrayList<NameValuePair>(); // 新增引數 params.add(new BasicNameValuePair("userName", "admin")); params.add(new BasicNameValuePair("psd", "admin")); params.add(new BasicNameValuePair("mac", "mac3333333333")); params.add(new BasicNameValuePair("md5", "md5555555555")); params.add(new BasicNameValuePair("type", "sample")); HttpClient httpclient = new DefaultHttpClient(); // 設定編碼 httppost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8)); // 傳送Post,並返回一個HttpResponse物件 HttpResponse httpResponse = httpclient.execute(httppost); // 以下兩行可以得到指定的Header Header header = httpResponse.getFirstHeader("Content-Length"); String headerVal = header.getValue(); HttpEntity httpEntity = httpResponse.getEntity(); if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {// 如果狀態碼為200,就是正常返回 String result = EntityUtils.toString(httpEntity); // 得到返回的字串 System.out.println(result); // 列印輸出 // 如果是下載檔案,可以用response.getEntity().getContent()返回InputStream }else { String result = EntityUtils.toString(httpEntity); // 得到返回的字串 System.out.println(result); } } */ } 以上例子中http請求了一個url:http://192.168.10.xxx:8010/xxxxxxxx/sample/sampleUpload.action; 其中sampleUpload.action是用struts配置的;sampleUpload.action對應的action方法如下: /** * HTTP介面, * 接收下屬客戶端及子管理中心上傳樣本,儲存樣本檔案 * * @return */ public void sampleUpload() { OutputStream out = null; try { out = sResponse.getOutputStream(); String result = "Response=101;"; String path = sRequest.getSession().getServletContext().getRealPath("/"); System.out.println(path); //使用者認證 String userName = sRequest.getParameter("userName"); String psd = sRequest.getParameter("psd"); //此處省略了使用者許可權認證的操作; String md5 = sRequest.getParameter("md5"); String mac = sRequest.getParameter("mac"); String type = sRequest.getParameter("type"); String ip = sRequest.getRemoteAddr(); if (StringUtils.isEmpty(md5) || StringUtils.isEmpty(mac) || StringUtils.isEmpty(type)) { result = "Response=011;"; } else { for (int i = 0; i < fileFileName.size(); i++) { try { String filename = fileFileName.get(i); String savePath = StringUtils.isEmpty(UrlAddress.getUrl(type)) ? path + "WEB-INF/uploadPath/" + type : UrlAddress.getUrl(type); if (!new File(savePath).exists()) { new File(savePath).mkdirs(); } filename = savePath + "/" + filename; // sampleName = fileFileName.get(i); FileOutputStream fos = new FileOutputStream(filename); InputStream is = new FileInputStream(file.get(i)); byte[] buffer = new byte[BUFFER_SIZE]; int count = 0; while ((count = is.read(buffer)) > 0) { fos.write(buffer, 0, count); } fos.close(); is.close(); filename = filename.replace('\\', '/'); result = "Response=000;"; result = sampleService.sampleUpload(type, md5, mac, filename, ip); } catch (Exception e) { result = "Response=101;"; e.printStackTrace(); } } } //記錄介面日誌 sampleService.interfaceLogSave("1", mac, md5, ip, result); //返回操作結果 out.write(result.getBytes()); out.flush(); } catch (IOException e1) { e1.printStackTrace(); } finally { try { if (out != null) out.close(); } catch (IOException e) { e.printStackTrace(); } } }