android http通过post请求发送一个xml
16lz
2021-01-24
今天，简单讲讲android如何在网络请求时通过post方式发送xml数据。
其实也很简单，不过我之前对网络请求这一块不太熟悉，当需要做这个发送xml数据时，居然不知道怎么做。后来，在网上查找资料，最终是解决了问题。这里记录一下。
一.通过HttpURLConnection发送xml数据
因为原理很简单，直接举例子。
其中发送的xml数据为：
<?xml version = “1.0” ?> SeqID CommandID ABSCDSDF ChargeMSISDN SPID Code < IDtype > IDtype 0 ID 0 返回的xml数据为：
<?xml version = “1.0” ?> SeqID ResultCode0 然后进行解析，代码如下，参考一下，对于以后再做post请求的时候，做参考
class httpThread implements Runnable { /* (non-Javadoc) * @see java.lang.Runnable#run() */ @Override public void run() { // TODO Auto-generated method stub //组建xml数据 StringBuilder xml = new StringBuilder(); xml.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); xml.append(""); xml.append(""); xml.append("13333333333 "); xml.append("1 "); xml.append("1333333333 "); xml.append("1333333333 "); xml.append("3510127 "); xml.append("0 "); xml.append("135000000000000216559 "); xml.append(" "); xml.append(" "); try { byte[] xmlbyte = xml.toString().getBytes("UTF-8"); System.out.println(xml); URL url = new URL("http://118.85.194.28:8080/sotpms_server/GetSSOMessage"); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5000); conn.setDoOutput(true);// 允许输出 conn.setDoInput(true); conn.setUseCaches(false);// 不使用缓存 conn.setRequestMethod("POST"); conn.setRequestProperty("Connection", "Keep-Alive");// 维持长连接 conn.setRequestProperty("Charset", "UTF-8"); conn.setRequestProperty("Content-Length", String.valueOf(xmlbyte.length)); conn.setRequestProperty("Content-Type", "text/xml; charset=UTF-8"); conn.setRequestProperty("X-ClientType", "2");//发送自定义的头信息 conn.getOutputStream().write(xmlbyte); conn.getOutputStream().flush(); conn.getOutputStream().close(); if (conn.getResponseCode() != 200) throw new RuntimeException("请求url失败"); InputStream is = conn.getInputStream();// 获取返回数据 // 使用输出流来输出字符(可选) ByteArrayOutputStream out = new ByteArrayOutputStream(); byte[] buf = new byte[1024]; int len; while ((len = is.read(buf)) != -1) { out.write(buf, 0, len); } String string = out.toString("UTF-8"); System.out.println(string); out.close(); // xml解析 String version = null; String seqID = null; XmlPullParser parser = Xml.newPullParser(); try { parser.setInput(new ByteArrayInputStream(string.substring(1) .getBytes("UTF-8")), "UTF-8"); parser.setInput(is, "UTF-8"); int eventType = parser.getEventType(); while (eventType != XmlPullParser.END_DOCUMENT) { if (eventType == XmlPullParser.START_TAG) { if ("SSOMessage".equals(parser.getName())) { version = parser.getAttributeValue(0); } else if ("SeqID".equals(parser.getName())) { seqID = parser.nextText(); } else if ("ResultCode".equals(parser.getName())) { resultCode = parser.nextText(); } } eventType = parser.next(); } } catch (XmlPullParserException e) { e.printStackTrace(); System.out.println(e); } catch (IOException e) { e.printStackTrace(); System.out.println(e); } System.out.println("version = " + version); System.out.println("seqID = " + seqID); System.out.println("resultCode = " + resultCode);*/ } catch (Exception e) { // TODO Auto-generated catch block System.out.println(e); } }简单讲讲，其实就是HttpURLConnection 的http请求头部设置和xml数据相关的内容，比较重要的是conn.setRequestProperty("Content-Length",String.valueOf(xmlbyte.length));数据长度为xml字符串的长度。conn.getOutputStream().write(xmlbyte);直接发送xml数据。最后解析返回的xml数据，我之前写了如何解析xml数据的博客，大家可以看看。
二.通过httpClient Post方式提交xml
也直接举一个例子：
package com.javaeye.wangking717.util;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.DefaultHttpClient;public class HttpConnectionUtil {private final static Log logger = LogFactory.getLog(HttpConnectionUtil.class);public static String postSOAP(String url, String soapContent) {HttpClient httpclient = null;HttpPost httpPost = null;BufferedReader reader = null;int i = 0;while (i < 4) {try {httpclient = new DefaultHttpClient();httpPost = new HttpPost(url);StringEntity myEntity = new StringEntity(soapContent, "UTF-8");httpPost.addHeader("Content-Type", "text/xml; charset=UTF-8");httpPost.setEntity(myEntity);HttpResponse response = httpclient.execute(httpPost);HttpEntity resEntity = response.getEntity();if (resEntity != null) {reader = new BufferedReader(new InputStreamReader(resEntity.getContent(), "UTF-8"));StringBuffer sb = new StringBuffer();String line = null;while ((line = reader.readLine()) != null) {sb.append(line);sb.append("\r\n");}return sb.toString();}} catch (Exception e) {i++;if (i == 4) {logger.error("not connect:" + url + "\n" + e.getMessage());}} finally {if (httpPost != null) {httpPost.abort();}if (reader != null) {try {reader.close();} catch (IOException e) {e.printStackTrace();}}if (httpclient != null) {httpclient.getConnectionManager().shutdown();}}}return "none";}public static void main(String[] args) {String url = "http://localhost:8080/opgtest/servlet/MyTest";String soap = "\r\n"+ "\r\n"+ "传递过来的内容\r\n" + "\r\n"+ " ";System.out.println(postSOAP(url, soap));}}也简单讲讲，主要是通过StringEntity stringEntity = new StringEntity(xml,"UTF-8");将xml数据变成StringEntity ，然后通过httpPost.setEntity(stringEntity);将StringEntity设置到httpPost。最后直接response = httpclient.execute(httpPost);发送数据。这个比起HttpURLConnection要简单很多，建议使用这一种代码。
android http通过post请求发送一个xml就讲完了。
就这么简单。
更多相关文章
- Android之TextView设置String文本颜色
- 第一行代码 Android(安卓)第 2 版 读书笔记
- Android中实现Native与H5的通信方案汇总
- Android(安卓)笔记38: BAIDU MAP API GPS数据定位偏移校正
- eclipse 上调试android的自带应用方法 一
- 第一个Android(安卓)程序的源代码: TxtReader文本阅读器
- Android中AsyncTask的执行过程
- 实例详解Android文件存储数据方式
- Android4.0下的Calendar、events、reminder简单Demo