httpclient 提示PKIX path building failed
使用https协议，网站换了ssl证书，原来的自动化代码不可用了，报错。
sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
在网上找了一些方法，比如在本机添加ssl证书，都未能解决。
最终解决方法是，在httpclient请求时，直接忽略掉ssl的证书。
setSslcontext(SSLContexts.custom().loadTrustMaterial(null, (x509Certificates, s) -> true).build())完整代码：
package com.test.common; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.net.HttpURLConnection; import java.net.URL; import java.nio.charset.StandardCharsets; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.conn.ConnectTimeoutException; import org.apache.http.conn.ssl.SSLContexts; import org.apache.http.conn.HttpHostConnectException; import org.apache.http.entity.ContentType; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.protocol.HTTP; import org.apache.http.util.EntityUtils; public class HttpClientUtil { private final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(HttpClientUtil.class.getName()); private final int DEFAULT_TIMEOUT = 10000; private static HttpClientUtil ins; private HttpClient client; private int timeout = DEFAULT_TIMEOUT; private static int maxConnTotal = 500; //最大不要超过1000 private static int maxConnPerRoute = 200;//实际的单个连接池大小， private HttpClientUtil() { if (client == null) { client = HttpClients.createDefault(); } } public static HttpClientUtil getInstance() { if (ins == null) { synchronized (HttpClientUtil.class) { if (ins == null) { ins = new HttpClientUtil(); } } } return ins; } public String doGetCustom(String uri) { String json = null; HttpResponse response = null; try { HttpGet request = new HttpGet(uri); RequestConfig config = RequestConfig.custom().setConnectionRequestTimeout(timeout) .setConnectTimeout(timeout).setSocketTimeout(timeout).build(); request.setConfig(config); client = HttpClients.custom().setDefaultRequestConfig(config) .setMaxConnTotal(maxConnTotal) .setMaxConnPerRoute(maxConnPerRoute).build(); response = client.execute(request); if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { json = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8); if(log.isDebugEnabled()) { log.debug("doGetCustom to {} response: {}", uri, json); } } else { log.warn("doGetCustom to {} response status code: {}, payload: {}", new Object[]{uri, response.getStatusLine().getStatusCode(), EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8)}); } } catch (ConnectTimeoutException e) { log.error("doGetCustom to {} raise ConnectTimeoutException, {}", uri, e.getMessage()); } catch (HttpHostConnectException e) { log.error("doGetCustom to {} raise HttpHostConnectException, {}", uri, e.getMessage()); } catch (Exception e) { log.error("doGetCustom to {} raise exception ,{}", uri, e.getMessage()); } finally { try { if (response != null) { EntityUtils.consume(response.getEntity()); } } catch (IOException e) { log.error("doGetCustom to {} raise final exception ,{}", uri, e.getMessage()); } } return json; } public String doPostWithJsonResult(String uri, Map<String, String> paramMap) { String json = null; HttpResponse response = null; try { HttpPost request = new HttpPost(uri); RequestConfig config = RequestConfig.custom().setConnectionRequestTimeout(timeout) .setConnectTimeout(timeout).setSocketTimeout(timeout).build(); request.setConfig(config); List<NameValuePair> params = new ArrayList<>(); if (paramMap != null && !paramMap.isEmpty()) { for (String key : paramMap.keySet()) { params.add(new BasicNameValuePair(key, paramMap.get(key))); } request.setEntity(new UrlEncodedFormEntity(params, "UTF-8")); } response = client.execute(request); log.debug("Response status code: {}", response.getStatusLine().getStatusCode()); if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { json = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8); if (log.isDebugEnabled()) { log.debug("doPostWithJsonResult to {} response:: {}", uri, json); } } else { log.warn("doPostWithJsonResult to {} response statusCode: {}, payload: {}", new Object[]{uri, response.getStatusLine().getStatusCode(), EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8)}); } request.releaseConnection(); } catch (ConnectTimeoutException e) { log.error("doPostWithJsonResult to {} raise ConnectTimeoutException, {}", uri, e.getMessage()); } catch (HttpHostConnectException e) { log.error("doPostWithJsonResult to {} raise HttpHostConnectException, {}", uri, e.getMessage()); } catch (Exception e) { log.error("doPostWithJsonResult to {} raise exception ,{}", uri, e.getMessage()); return null; } finally { try { if (response != null) { EntityUtils.consume(response.getEntity()); } } catch (IOException e) { log.error("doPostWithJsonResult to {} raise final exception ,{}", uri, e.getMessage()); } } return json; } public String doPostWithJsonResult(String uri, String jsonParameters) { HttpPost request = new HttpPost(uri); RequestConfig config = RequestConfig.custom().setConnectionRequestTimeout(timeout) .setConnectTimeout(timeout).setSocketTimeout(timeout).build(); request.setConfig(config); request.setEntity(new StringEntity(jsonParameters, ContentType.APPLICATION_JSON)); HttpResponse response = null; String responseStr = null; try { response = client.execute(request); if (response.getStatusLine().getStatusCode() == 200) {//如果是200 表示成功 responseStr = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8); if (log.isDebugEnabled()) { log.debug("doPostWithJsonResult to {} response:: {}", uri, responseStr); } } else { log.warn("doPostWithJsonResult to {} response statusCode: {}, payload: {}", new Object[]{uri, response.getStatusLine().getStatusCode(), EntityUtils.toString(response.getEntity())}); } } catch (ConnectTimeoutException e) { log.error("doPostWithJsonResult to {} raise ConnectTimeoutException, {}", uri, e.getMessage()); } catch (HttpHostConnectException e) { log.error("doPostWithJsonResult to {} raise HttpHostConnectException, {}", uri, e.getMessage()); } catch (Exception e) { log.error("doPostWithJsonResult to {} raise exception ,{}", uri, e.getMessage()); } return responseStr; } public String doPost(String url, ArrayList<BasicNameValuePair> data) { HttpResponse response = null; try { //UrlEncodedFormEntity这个类是用来把输入数据编码成合适的内容 //两个键值对，被UrlEncodedFormEntity实例编码后变为如下内容：param1=value1¶m2=value2 //首先将参数设置为utf-8的形式 UrlEncodedFormEntity entity = new UrlEncodedFormEntity(data, HTTP.UTF_8); String result = ""; HttpPost post = new HttpPost(url);//post方式 RequestConfig config = RequestConfig.custom().setConnectionRequestTimeout(timeout) .setConnectTimeout(timeout).setSocketTimeout(timeout).build(); post.setConfig(config); post.setEntity(entity);//带上参数 client = HttpClients.custom().setDefaultRequestConfig(config) .setSslcontext(SSLContexts.custom().loadTrustMaterial(null, (x509Certificates, s) -> true).build()) .setMaxConnTotal(maxConnTotal) .setMaxConnPerRoute(maxConnPerRoute).build(); log.info("headers {}",post.getAllHeaders()); response = client.execute(post);//响应结果 if (response.getStatusLine().getStatusCode() == 200) { //把结果取出来是一个STRING类型的 result = EntityUtils.toString(response.getEntity()); if (log.isDebugEnabled()) { log.debug("doPost to {} response: {}", url, result); } } else { log.warn("doPost to {} response statusCode: {}, payload: {}", new Object[]{url, response.getStatusLine().getStatusCode(), EntityUtils.toString(response.getEntity())}); } return result; } catch (ConnectTimeoutException e) { log.error("doPost to {} raise ConnectTimeoutException, {}", url, e.getMessage()); } catch (HttpHostConnectException e) { log.error("doPost to {} raise HttpHostConnectException, {}", url, e.getMessage()); } catch (Exception e) { log.error("doPost to {} raise exception ,{}", url, e.getMessage()); } finally { try { if (response != null) { EntityUtils.consume(response.getEntity()); } } catch (IOException e) { log.error("doPost to {} raise final exception ,{}", url, e.getMessage()); } } return null; } /** * @return the timeout */ public int getTimeout() { return timeout; } /** * @param timeout the timeout to set */ public void setTimeout(int timeout) { this.timeout = timeout; } public String doPost(String url, String jsonStr, int timeout) { setTimeout(timeout); return doPostWithJsonResult(url, jsonStr); } public String doGetCustom(String url, int timeout) { setTimeout(timeout); return doGetCustom(url); } public static void main(String[] args) { try { // throw new NullArgumentException(null); } catch (Exception e) { System.out.println(e.getMessage()); return; } finally { System.out.println(111); } } }
