前言
项目中需要请求第三方接口，而且要求请求参数数据为json类型的。本来首先使用的是httpclient的jar包，但是因为项目中已经使用了common-httpclient的jar包，引起了冲突，所以不得不使用common-httpclient来实现。
示例代码：
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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请求
* @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");//解决中文乱码问题
// 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("请求接口参数：" + 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("请求接口路径url：" + method.geturi().tostring());
inputstream in = method.getresponsebodyasstream();
//下面将stream转换为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();
}
}
}
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总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，如果有疑问大家可以留言交流，谢谢大家对服务器之家的支持。
原文链接：https://blog.csdn.net/u010398838/article/details/80708632