Java 许多请求的httpclient超时
为了模拟一个有很多用户的Web应用程序,我使用了for循环,我知道它仍然非常不同,因为这将是单线程的。我的代码在下面Java 许多请求的httpclient超时,java,apache,jakarta-ee,httpclient,apache-httpclient-4.x,Java,Apache,Jakarta Ee,Httpclient,Apache Httpclient 4.x,为了模拟一个有很多用户的Web应用程序,我使用了for循环,我知道它仍然非常不同,因为这将是单线程的。我的代码在下面 public CloseableHttpClient getHttpClient() { try{ SSLContext context = null; TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
public CloseableHttpClient getHttpClient() {
try{
SSLContext context = null;
TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) {
}
} };
try {
context = SSLContext.getInstance("SSL");
} catch (NoSuchAlgorithmException e1) {
e1.printStackTrace();
}
try {
context.init(null, trustAllCerts, new java.security.SecureRandom());
} catch (KeyManagementException e1) {
e1.printStackTrace();
}
SSLConnectionSocketFactory sslConnectionFactory = new SSLConnectionSocketFactory(context, SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory> create()
.register("https", sslConnectionFactory)
.register("http", new PlainConnectionSocketFactory()).build();
PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
// Increase max total connection to 200
cm.setMaxTotal(20);
// Increase default max connection per route to 20
cm.setDefaultMaxPerRoute(10);
RequestConfig defaultRequestConfig = RequestConfig.custom()
.setSocketTimeout(5000)
.setConnectTimeout(5000)
.setConnectionRequestTimeout(5000)
.build();
CloseableHttpClient httpClient = HttpClients.custom().setConnectionManager(cm).setConnectionManagerShared(true)
.setDefaultRequestConfig(defaultRequestConfig).build();
return httpClient;
}catch(Exception ce){
}
return null;
}
public CloseableHttpClient getHttpClient(){
试一试{
SSLContext context=null;
TrustManager[]trustAllCerts=new TrustManager[]{new X509TrustManager(){
public java.security.cert.X509Certificate[]getAcceptedIssuers(){
返回null;
}
public void checkClientTrusted(java.security.cert.X509Certificate[]证书,字符串authType){
}
public void checkServerTrusted(java.security.cert.X509Certificate[]证书,字符串authType){
}
} };
试一试{
context=SSLContext.getInstance(“SSL”);
}捕获(无算法异常e1){
e1.printStackTrace();
}
试一试{
init(null,trustAllCerts,new java.security.SecureRandom());
}catch(KeyManagementException e1){
e1.printStackTrace();
}
SSLConnectionSocketFactory sslConnectionFactory=新的SSLConnectionSocketFactory(上下文,SSLConnectionSocketFactory.ALLOW\u ALL\u主机名\u验证器);
注册表socketFactoryRegistry=RegistryBuilder.create()
.register(“https”,sslConnectionFactory)
.register(“http”,新的PlainConnectionSocketFactory()).build();
PoolightPClientConnectionManager cm=新的PoolightPClientConnectionManager(socketFactoryRegistry);
//将最大总连接数增加到200
cm.setMaxTotal(20);
//将每条路由的默认最大连接数增加到20
cm.setDefaultMaxPerRoute(10);
RequestConfig defaultRequestConfig=RequestConfig.custom()
.setSocketTimeout(5000)
.setConnectTimeout(5000)
.setConnectionRequestTimeout(5000)
.build();
CloseableHttpClient httpClient=HttpClients.custom().setConnectionManager(cm).setConnectionManager共享(true)
.setDefaultRequestConfig(defaultRequestConfig).build();
返回httpClient;
}捕获(例外ce){
}
返回null;
}
然后在循环中,我使用它,如下所示
try{
for(int i=0;i<500;i++){
client = getHttpClient();
request = new HttpPost("Some https URL");
HttpResponse response = client.execute(request);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == 200 ){
entity = response.getEntity();
String content = EntityUtils.toString(entity);
}
else{
entity = response.getEntity();
String content = EntityUtils.toString(entity);
}}
catch(Exception ce){}
finally{
try {
EntityUtils.consume(entity);
request.releaseConnection();
client.close();
} catch (IOException e) {
}
}
试试看{
对于(int i=0;i您确定您的https服务器能够顺利处理200个连接吗?。
我觉得,问题不在于您的httpsClient代码。服务器可能会因为负载而拒绝接受少量请求?作为下面的例外情况,httpclient显然无法建立套接字连接。httpclient尝试建立连接,但在预先定义的建立连接时间内,它无法连接
java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:152) at java.net.SocketInputStream.read(SocketInputStream.java:122) at
请检查这个
使用Apache HttpClient
尝试对请求设置锁定。我在代码中没有看到对资源(http客户端)的任何锁定。通过增加连接超时或使用最大连接来处理请求,问题可能会得到解决。