前言
項目中需要請求第三方接口，而且要求請求參數數據為json類型的。本來首先使用的是httpclient的jar包，但是因為項目中已經使用了common-httpclient的jar包，引起了沖突，所以不得不使用common-httpclient來實現。
示例代碼：
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import java.io.bufferedreader;import java.io.fileoutputstream;import java.io.ioexception;import java.io.inputstream;import java.io.inputstreamreader;import java.net.url;import java.net.urlconnection;import java.util.list;import java.util.map;import java.util.zip.gzipinputstream;import org.apache.commons.httpclient.httpclient;import org.apache.commons.httpclient.httpmethod;import org.apache.commons.httpclient.namevaluepair;import org.apache.commons.httpclient.methods.getmethod;import org.apache.commons.httpclient.methods.postmethod;import org.apache.commons.httpclient.methods.requestentity;import org.apache.commons.httpclient.methods.stringrequestentity;import org.apache.commons.io.ioutils;import org.slf4j.logger;import org.slf4j.loggerfactory;public class httputils { private static logger logger = loggerfactory.getlogger(httputils.class); /** * post請求 * @param url * @param json * @return */ public static string postjosncontent(string url, string json) throws exception {// httppost method = new httppost(url); // defaulthttpclient httpclient = new defaulthttpclient(); // string ret = null;// try {// stringentity entity = new stringentity(json,"utf-8");//解決中文亂碼問題 // entity.setcontentencoding("utf-8"); // entity.setcontenttype("application/json");// method.setentity(entity); // httpresponse result = httpclient.execute(method); // ret = entityutils.tostring(result.getentity()); // } catch (exception e) {// throw e;// } finally {// method.releaseconnection();// }// return ret; logger.error("請求接口參數：" + json); postmethod method = new postmethod(url); httpclient httpclient = new httpclient(); try { requestentity entity = new stringrequestentity(json,"application/json","utf-8"); method.setrequestentity(entity); httpclient.executemethod(method); logger.error("請求接口路徑url：" + method.geturi().tostring()); inputstream in = method.getresponsebodyasstream(); //下面將stream轉換為string stringbuffer sb = new stringbuffer(); inputstreamreader isr = new inputstreamreader(in, "utf-8"); char[] b = new char[4096]; for(int n; (n = isr.read(b)) != -1;) { sb.append(new string(b, 0, n)); } string returnstr = sb.tostring(); return returnstr; } catch (exception e) { e.printstacktrace(); throw e; } finally { method.releaseconnection(); } }} |
總結
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原文鏈接：https://blog.csdn.net/u010398838/article/details/80708632
