Java HttpURLConnection使用方法详解
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2023-12-21 11:02:52
本文实例为大家分享了java httpurlconnection使用,供大家参考,具体内容如下
包括使用httpurlconnection执行get/post请求...
本文实例为大家分享了java httpurlconnection使用,供大家参考,具体内容如下
包括使用httpurlconnection执行get/post请求
package com.cn.testproject; import java.io.bytearrayoutputstream; import java.io.ioexception; import java.io.inputstream; import java.io.outputstream; import java.net.httpurlconnection; import java.net.url; public class httpconnectionurldemo { public static void main(string[] args) throws exception { //get(); post(); } public static void get() throws exception { string path = "http://www.baidu.com"; url url = new url(path); httpurlconnection conn = (httpurlconnection) url.openconnection(); conn.setconnecttimeout(5 * 1000); conn.setrequestmethod("get"); inputstream instream = conn.getinputstream(); byte[] data = tobytearray(instream); string result = new string(data, "utf-8"); system.out.println(result); } public static void post() throws exception { string encoding = "utf-8"; //post的form参数(json兼职对) string params = "[{\"addtime\":\"2011-09-19 14:23:02\"[],\"iccid\":\"1111\",\"id\":0,\"imei\":\"2222\",\"imsi\":\"3333\",\"phonetype\":\"4444\",\"remark\":\"aaaa\",\"tel\":\"5555\"}]"; string path = "http://www.baidu.com"; byte[] data = params.getbytes(encoding); url url = new url(path); httpurlconnection conn = (httpurlconnection) url.openconnection(); conn.setrequestmethod("post"); conn.setdooutput(true); conn.setrequestproperty("content-type", "application/x-javascript; charset=" + encoding); conn.setrequestproperty("content-length", string.valueof(data.length)); conn.setconnecttimeout(5 * 1000); outputstream outstream = conn.getoutputstream(); outstream.write(data); outstream.flush(); outstream.close(); system.out.println(conn.getresponsecode()); // 响应代码 200表示成功 if (conn.getresponsecode() == 200) { inputstream instream = conn.getinputstream(); string result = new string(tobytearray(instream), "utf-8"); system.out.println(result); // 响应代码 200表示成功 } } private static byte[] tobytearray(inputstream input) throws ioexception { bytearrayoutputstream output = new bytearrayoutputstream(); byte[] buffer = new byte[4096]; int n = 0; while (-1 != (n = input.read(buffer))) { output.write(buffer, 0, n); } return output.tobytearray(); } }
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。