public class HttpRequestUtil {
private static final String HTTP = "http";
private static final String HTTPS = "https";
private static SSLConnectionSocketFactory sslsf = null;
private static PoolingHttpClientConnectionManager cm = null;
private static SSLContextBuilder builder = null;
static {
try {
builder = new SSLContextBuilder();
// 全部信任 不做身份鉴定
builder.loadTrustMaterial(null, new TrustStrategy() {
@Override
public boolean isTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
return true;
}
});
sslsf = new SSLConnectionSocketFactory(builder.build(), new String[]{"SSLv2Hello", "SSLv3", "TLSv1", "TLSv1.2"}, null, NoopHostnameVerifier.INSTANCE);
Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
.register(HTTP, new PlainConnectionSocketFactory())
.register(HTTPS, sslsf)
.build();
cm = new PoolingHttpClientConnectionManager(registry);
cm.setMaxTotal(200);//max connection 设置最大连接数
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* httpClient post请求
* @param url 请求url
* @param params 请求参数 form提交适用
* @param encoding 请求实体 json/xml提交适用
* @return 可能为空 需要处理
* @throws Exception
*
*/
public static String post(String url, String params, String encoding) throws Exception {
String result = "";
CloseableHttpClient httpClient = null;
try {
httpClient = getHttpClient();
HttpPost httpPost = new HttpPost(url);
// 设置头信息
httpPost.addHeader("Content-Type", "application/json;charset=" + encoding);
// 消息实体
httpPost.setEntity(new StringEntity(params, encoding));
//发起请求
HttpResponse httpResponse = httpClient.execute(httpPost);
//解析返回消息实体
HttpEntity resEntity = httpResponse.getEntity();
if (resEntity != null) {
result= EntityUtils.toString(resEntity);
log.info("result==="+result);
}
} catch (Exception e) {
throw e;
} finally {
if (httpClient != null) {
httpClient.close();
}
}
return result;
}
public static CloseableHttpClient getHttpClient() throws Exception {
CloseableHttpClient httpClient = HttpClients.custom()
.setSSLSocketFactory(sslsf)
.setConnectionManager(cm)
.setConnectionManagerShared(true)
.build();
return httpClient;
}
}