微信扫码支付 返回为post错误

[w_xj]

<xml><return_code><![CDATA[FAIL]]></return_code>
<return_msg><![CDATA[post数据为空]]></return_msg>
</xml>

返回的是这个post错误

<xml><appid>wxfa3cac7dca16dcab</appid><mch_id>1349333401</mch_id><nonce_str>1555511523</nonce_str><notify_url>http://localhost:8080/index.jsp</notify_url><out_trade_no>11338</out_trade_no><product_id>12235413214070356458058</product_id><sign><[CDATA[55779B05F1CE91B1754B204BD6137AFC]]></sign><spbill_create_ip>124.65.185.22</spbill_create_ip><total_fee>1</total_fee><trade_type>NATIVE</trade_type></xml>

这个事我打印出拼的xml

求解这该怎么解决

[叮当66]

数据为空，说明你没有把这个xml数据传过去

[叮当66]

            public static String httpsRequest(String requestUrl, String requestMethod, String outputStr) {
		try {
			// 创建SSLContext对象，并使用我们指定的信任管理器初始化
			TrustManager[] tm = { new MyX509TrustManager() };
			SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
			sslContext.init(null, tm, new java.security.SecureRandom());
			// 从上述SSLContext对象中得到SSLSocketFactory对象
			SSLSocketFactory ssf = sslContext.getSocketFactory();

			URL url = new URL(requestUrl);
			HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
			conn.setSSLSocketFactory(ssf);
			conn.setDoOutput(true);
			conn.setDoInput(true);
			conn.setUseCaches(false);
			// 设置请求方式（GET/POST）
			conn.setRequestMethod(requestMethod);

			// 当outputStr不为null时向输出流写数据
			if (null != outputStr) {
				OutputStream outputStream = conn.getOutputStream();
				// 注意编码格式
				outputStream.write(outputStr.getBytes("UTF-8"));
				outputStream.close();
			}
			// 从输入流读取返回内容
			InputStream inputStream = conn.getInputStream();
			InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
			BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
			String str = null;
			StringBuffer buffer = new StringBuffer();
			while ((str = bufferedReader.readLine()) != null) {
				buffer.append(str);
			}
			// 释放资源
			bufferedReader.close();
			inputStreamReader.close();
			inputStream.close();
			inputStream = null;
			conn.disconnect();
			return buffer.toString();
		} catch (ConnectException ce) {
			log.error("连接超时：{}", ce);
		} catch (Exception e) {
			log.error("https请求异常：{}", e);
		}
		return null;
	}

public class MyX509TrustManager implements X509TrustManager {

	// 检查客户端证书
	public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
	}

	// 检查服务器端证书
	public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
	}

	// 返回受信任的X509证书数组
	public X509Certificate[] getAcceptedIssuers() {
		return null;
	}
}

[叮当66]

用这个试试 HttpsUtil.httpsRequest("https://api.mch.weixin.qq.com/pay/unifiedorder", "POST", requestXml);