Java 在线但非本地发布请求超时[谷歌应用程序引擎]
当我向指定的URL发出post请求时,我遇到了Google应用程序引擎超时的问题。当我在上执行测试请求时,它工作得非常好。当我在本地服务器上运行代码时,运行得非常好。当我将它部署到Google App Engine并在线测试时,无论我给它多少超时限制,它都会超时(测试时间长达1分钟)。我不知道是什么原因导致它在网上而不是本地出现。下面是我在出错时得到的代码和堆栈跟踪:Java 在线但非本地发布请求超时[谷歌应用程序引擎],java,google-app-engine,Java,Google App Engine,当我向指定的URL发出post请求时,我遇到了Google应用程序引擎超时的问题。当我在上执行测试请求时,它工作得非常好。当我在本地服务器上运行代码时,运行得非常好。当我将它部署到Google App Engine并在线测试时,无论我给它多少超时限制,它都会超时(测试时间长达1分钟)。我不知道是什么原因导致它在网上而不是本地出现。下面是我在出错时得到的代码和堆栈跟踪: package com.servlet.thing; import java.io.BufferedReader; impor
package com.servlet.thing;
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.net.URLConnection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.net.ssl.HttpsURLConnection;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@SuppressWarnings("serial")
public class ServletThingServlet extends HttpServlet {
private static final String PASS = "testpassword123";
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
URL url = new URL("https://api.roblox.com/login/v1");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
//URLConnection con = url.openConnection();
con.setConnectTimeout(60000);
// Doesn't get past here online
resp.getWriter().println("connected");
con.setDoOutput(true);
con.setRequestMethod("POST");
resp.getWriter().println("checkpoint 1");
OutputStreamWriter writer = new OutputStreamWriter(con.getOutputStream());
writer.write("username=TestPromotionAcc&password=" + PASS);
writer.flush();
writer.close();
resp.getWriter().println("checkpoint 2");
HashMap<String, List<String>> map = (HashMap<String, List<String>>) con.getHeaderFields();
if (con.getResponseCode() == HttpURLConnection.HTTP_OK || con.getResponseCode() == HttpURLConnection.HTTP_NOT_FOUND) {
StringBuffer response = new StringBuffer();
String line;
BufferedReader reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
while ((line = reader.readLine()) != null) {
response.append(line);
}
System.out.println("--- HEADER FIELDS ---\n");
for (Map.Entry<String, List<String>> entry : map.entrySet()) {
if (entry.getKey().equalsIgnoreCase("set-cookie")) {
System.out.println("Value : " + entry.getValue());
resp.getWriter().println("Set cookies: " + entry.getValue());
}
}
reader.close();
System.out.println(response.toString());
} else {
resp.getWriter().println(con.getResponseCode() + ": " + con.getResponseMessage());
}
}
}
package com.servlet.thing;
导入java.io.BufferedReader;
导入java.io.IOException;
导入java.io.InputStreamReader;
导入java.io.OutputStreamWriter;
导入java.net.HttpURLConnection;
导入java.net.URL;
导入java.net.URLConnection;
导入java.util.HashMap;
导入java.util.List;
导入java.util.Map;
导入javax.net.ssl.HttpsURLConnection;
导入javax.servlet.http.HttpServlet;
导入javax.servlet.http.HttpServletRequest;
导入javax.servlet.http.HttpServletResponse;
@抑制警告(“串行”)
公共类ServletThingServlet扩展了HttpServlet{
私有静态最终字符串PASS=“testpassword123”;
public void doGet(HttpServletRequest-req、HttpServletResponse-resp)引发IOException{
URL=新URL(“https://api.roblox.com/login/v1");
HttpURLConnection con=(HttpURLConnection)url.openConnection();
//URLConnection con=url.openConnection();
con.设置连接超时(60000);
//不能在网上通过这里
resp.getWriter().println(“已连接”);
con.设置输出(真);
con.setRequestMethod(“POST”);
resp.getWriter().println(“检查点1”);
OutputStreamWriter writer=新的OutputStreamWriter(con.getOutputStream());
writer.write(“username=TestPromotionAcc&password=“+PASS”);
writer.flush();
writer.close();
resp.getWriter().println(“检查点2”);
HashMap=(HashMap)con.getHeaderFields();
如果(con.getResponseCode()==HttpURLConnection.HTTP|u确定| | con.getResponseCode()==HttpURLConnection.HTTP|u未找到){
StringBuffer响应=新的StringBuffer();
弦线;
BufferedReader=new BufferedReader(new InputStreamReader(con.getInputStream());
而((line=reader.readLine())!=null){
响应。追加(行);
}
System.out.println(“---标题字段---\n”);
对于(Map.Entry:Map.entrySet()){
if(entry.getKey().equalsIgnoreCase(“设置cookie”)){
System.out.println(“Value:+entry.getValue());
resp.getWriter().println(“设置cookies:+entry.getValue());
}
}
reader.close();
System.out.println(response.toString());
}否则{
resp.getWriter().println(con.getResponseCode()+“:”+con.getResponseMessage());
}
}
}
这是堆栈跟踪:
来自servlet的未捕获异常
java.net.SocketTimeoutException:获取URL时超时:
位于com.google.appengine.api.urlfetch.URLFetchServiceImpl.convertApplicationException(URLFetchServiceImpl.java:179)
位于com.google.appengine.api.urlfetch.URLFetchServiceImpl.fetch(URLFetchServiceImpl.java:45)
位于com.google.apphosting.utils.security.urlfetch.URLFetchServiceStreamHandler$Connection.fetchResponse(URLFetchServiceStreamHandler.java:543)
位于com.google.apphosting.utils.security.urlfetch.URLFetchServiceStreamHandler$Connection.getInputStream(URLFetchServiceStreamHandler.java:422)
位于com.google.apphosting.utils.security.urlfetch.URLFetchServiceStreamHandler$Connection.getResponseCode(URLFetchServiceStreamHandler.java:275)
位于com.servlet.thing.ServletThingServlet.doGet(ServletThingServlet.java:30)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
位于org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
位于org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
在com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125)上
位于org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
位于com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:37)
位于org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
位于com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60)
位于org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
位于com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:48)
位于org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
位于org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
位于org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
位于org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
位于org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
位于org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
位于com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:257)
位于org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
位于org.mortbay.jetty.Server.handle(Server.java:326)
位于org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
位于org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
位于com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
位于org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
在com.google.apphosting.runtime.jetty.JettyServletEngineAdapte