微信支付JAVA后台，可直接修改使用

package com.weixinpay.common; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.security.KeyManagementException; import java.security.KeyStore; import java.security.KeyStoreException; import java.security.NoSuchAlgorithmException; import java.security.UnrecoverableKeyException; import java.security.cert.CertificateException; import javax.net.ssl.SSLContext; import javax.net.ssl.X509TrustManager; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.methods.HttpPost; import org.apache.http.conn.ssl.SSLConnectionSocketFactory; import org.apache.http.conn.ssl.SSLContexts; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.HttpClients; import org.apache.http.util.EntityUtils; import com.thoughtworks.xstream.XStream; import com.thoughtworks.xstream.io.xml.DomDriver; import com.thoughtworks.xstream.io.xml.XmlFriendlyNameCoder; public class HttpRequest { //连接超时时间，默认10秒 private static final int socketTimeout = 10000; //传输超时时间，默认30秒 private static final int connectTimeout = 30000; /** * post请求 * @throws IOException * @throws ClientProtocolException * @throws NoSuchAlgorithmException * @throws KeyStoreException * @throws KeyManagementException * @throws UnrecoverableKeyException */ public static String sendPost(String url, Object xmlObj) throws ClientProtocolException, IOException, UnrecoverableKeyException, KeyManagementException, KeyStoreException, NoSuchAlgorithmException { HttpPost httpPost = new HttpPost(url); //解决XStream对出现双下划线的bug XStream xStreamForRequestPostData = new XStream(new DomDriver("UTF-8", new XmlFriendlyNameCoder("-_", "_"))); xStreamForRequestPostData.alias("xml", xmlObj.getClass()); //将要提交给API的数据对象转换成XML格式数据Post给API String postDataXML = xStreamForRequestPostData.toXML(xmlObj); //得指明使用UTF-8编码，否则到API服务器XML的中文不能被成功识别 StringEntity postEntity = new StringEntity(postDataXML, "UTF-8"); httpPost.addHeader("Content-Type", "text/xml"); httpPost.setEntity(postEntity); //设置请求器的配置 RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(socketTimeout).setConnectTimeout(connectTimeout).build(); httpPost.setConfig(requestConfig); HttpClient httpClient = HttpClients.createDefault(); HttpResponse response = httpClient.execute(httpPost); HttpEntity entity = response.getEntity(); String result = EntityUtils.toString(entity, "UTF-8"); return result; } /** * 自定义证书管理器，信任所有证书 * @author pc * */ public static class MyX509TrustManager implements X509TrustManager { @Override public void checkClientTrusted( java.security.cert.X509Certificate[] arg0, String arg1) throws java.security.cert.CertificateException { // TODO Auto-generated method stub } @Override public void checkServerTrusted( java.security.cert.X509Certificate[] arg0, String arg1) throws java.security.cert.CertificateException { // TODO Auto-generated method stub } @Override public java.security.cert.X509Certificate[] getAcceptedIssuers() { // TODO Auto-generated method stub return null; } } }