WeixinWebUtil（微信请求工具类）
public class WeixinWebUtil {
private static Logger log = LoggerFactory.getLogger(WeixinWebUtil.class);
public static String doGet(String url, String charset, int connectTimeout, int readTimeout) {
return httpRequest(url, "GET", null, charset, connectTimeout, readTimeout, null);
}
public static String doGet(String url, String charset, int connectTimeout, int readTimeout, Map headerMap) {
return httpRequest(url, "GET", null, charset, connectTimeout, readTimeout, headerMap);
}
//url为不带 ? 号的url
public static String doGet(String url, Map paramMap, String charset, int connectTimeout, int readTimeout) throws IOException {
String query = buildQuery(paramMap, charset);
return httpRequest(url + "?" + query, "GET", null, charset, connectTimeout, readTimeout, null);
}
public static String doGet(String url, Map paramMap, String charset, int connectTimeout, int readTimeout, Map headerMap) throws IOException {
String query = buildQuery(paramMap, charset);
return httpRequest(url + "?" + query, "GET", null, charset, connectTimeout, readTimeout, headerMap);
}
public static String doPost(String url, Map paramMap, String jsonParam, String charset, int connectTimeout, int readTimeout) throws IOException {
String query = buildQuery(paramMap, charset);
return httpRequest(url + "?" + query, "POST", jsonParam, charset, connectTimeout, readTimeout, null);
}
public static String doPost(String url, Map paramMap, String jsonParam, String charset, int connectTimeout, int readTimeout, Map headerMap) throws IOException {
String query = buildQuery(paramMap, charset);
return httpRequest(url + "?" + query, "POST", jsonParam, charset, connectTimeout, readTimeout, headerMap);
}
public static String doPost(String url, String jsonParam, String charset, int connectTimeout, int readTimeout) {
return httpRequest(url, "POST", jsonParam, charset, connectTimeout, readTimeout, null);
}
public static String doPost(String url, String jsonParam, String charset, int connectTimeout, int readTimeout, Map headerMap) {
return httpRequest(url, "POST", jsonParam, charset, connectTimeout, readTimeout, headerMap);
}
/**
* 发起https请求并获取结果
*
* @param requestUrl 请求地址
* @param requestMethod 请求方式（GET、POST）
* @param outputStr 提交的数据
* @return String
*/
private static String httpRequest(String requestUrl, String requestMethod, String outputStr, String charset, int connectTimeout, int readTimeout, Map headerMap) {
StringBuffer buffer = new StringBuffer();
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("TLSV1"); //使用TLS协议加密
// 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 httpUrlConn = (HttpsURLConnection) url.openConnection();
httpUrlConn.setSSLSocketFactory(ssf);
httpUrlConn.setDoOutput(true);
httpUrlConn.setDoInput(true);
httpUrlConn.setUseCaches(false);
httpUrlConn.setConnectTimeout(connectTimeout);
httpUrlConn.setReadTimeout(readTimeout);
// 设置请求方式（GET/POST）
httpUrlConn.setRequestMethod(requestMethod);
if(headerMap!=null){
for(Map.Entry entry : headerMap.entrySet()){
httpUrlConn.setRequestProperty(entry.getKey(), entry.getValue());
}
}
if ("GET".equalsIgnoreCase(requestMethod)){
httpUrlConn.connect();
}
// 当有数据需要提交时
if (StringUtils.isNotBlank(outputStr)) {
OutputStream outputStream = httpUrlConn.getOutputStream();
// 注意编码格式，防止中文乱码
outputStream.write(outputStr.getBytes(charset));
outputStream.close();
}
// 将返回的输入流转换成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, charset);
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
// 释放资源
inputStream.close();
inputStream = null;
httpUrlConn.disconnect();
} catch (ConnectException ce) {
log.error("Weixin server connection timed out.");
} catch (Exception e) {
log.error("https request error:", e);
}
return buffer.toString();
}
public static String buildQuery(Map params, String charset) throws IOException {
if (params == null || params.isEmpty()) {
return null;
}
StringBuilder query = new StringBuilder();
Set> entries = params.entrySet();
boolean hasParam = false;
for (Map.Entry entry : entries) {
String name = entry.getKey();
String value = entry.getValue();
// 忽略参数名或参数值为空的参数
if (StringUtils.isNotBlank(name) && StringUtils.isNotBlank(value)) {
if (hasParam) {
query.append("&");
} else {
hasParam = true;
}
query.append(name).append("=").append(URLEncoder.encode(value, charset));
}
}
return query.toString();
}
}
}
