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Impossible de créer une connexion avec Google Cloud SQL

2017-10-06 23 views
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J'essaie de me connecter au cloud SQL, mais il affiche toujours une erreur.Impossible de créer une connexion avec Google Cloud SQL

HTTP ERROR 500 

Problem accessing /cloudsql. Reason: 

    Could not create connection to database server. 
Caused by: 

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance_(Runtime.java:140) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:148) 
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) 
    at com.mysql.jdbc.Util.getInstance(Util.java:408) 
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918) 
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:897) 
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:886) 
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860) 
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2330) 
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) 
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) 
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance_(Runtime.java:140) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:148) 
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) 
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) 
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) 
    at java.sql.DriverManager.getConnection(DriverManager.java:664) 
    at java.sql.DriverManager.getConnection(DriverManager.java:270) 
    at com.azeem.endpoint.CloudSqlServlet.doGet(CloudSqlServlet.java:70) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) 
    at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:134) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:48) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectRequest(DevAppServerModulesFilter.java:366) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectModuleRequest(DevAppServerModulesFilter.java:349) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doFilter(DevAppServerModulesFilter.java:116) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:95) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:508) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:326) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) 
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) 
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) 
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) 
Caused by: java.lang.RuntimeException: Unable to obtain credentials to communicate with the Cloud SQL API 
    at com.google.cloud.sql.core.SslSocketFactory$ApplicationDefaultCredentialFactory.create(SslSocketFactory.java:547) 
    at com.google.cloud.sql.core.SslSocketFactory.getInstance(SslSocketFactory.java:140) 
    at com.google.cloud.sql.mysql.SocketFactory.connect(SocketFactory.java:48) 
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300) 
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2251) 
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) 
    ... 52 more 
Caused by: java.io.IOException: The Application Default Credentials are not available. They are available if running in Google Compute Engine. Otherwise, the environment variable GOOGLE_APPLICATION_CREDENTIALS must be defined pointing to a file defining the credentials. See https://developers.google.com/accounts/docs/application-default-credentials for more information. 
    at com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.getDefaultCredential(DefaultCredentialProvider.java:95) 
    at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:213) 
    at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:191) 
    at com.google.cloud.sql.core.SslSocketFactory$ApplicationDefaultCredentialFactory.create(SslSocketFactory.java:545) 
    ... 57 more 
Caused by: 

java.lang.RuntimeException: Unable to obtain credentials to communicate with the Cloud SQL API 
    at com.google.cloud.sql.core.SslSocketFactory$ApplicationDefaultCredentialFactory.create(SslSocketFactory.java:547) 
    at com.google.cloud.sql.core.SslSocketFactory.getInstance(SslSocketFactory.java:140) 
    at com.google.cloud.sql.mysql.SocketFactory.connect(SocketFactory.java:48) 
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300) 
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2251) 
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) 
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) 
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) 
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance_(Runtime.java:140) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:148) 
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) 
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) 
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) 
    at java.sql.DriverManager.getConnection(DriverManager.java:664) 
    at java.sql.DriverManager.getConnection(DriverManager.java:270) 
    at com.azeem.endpoint.CloudSqlServlet.doGet(CloudSqlServlet.java:70) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) 
    at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:134) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:48) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectRequest(DevAppServerModulesFilter.java:366) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectModuleRequest(DevAppServerModulesFilter.java:349) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doFilter(DevAppServerModulesFilter.java:116) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:95) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:508) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:326) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) 
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) 
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) 
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) 
Caused by: java.io.IOException: The Application Default Credentials are not available. They are available if running in Google Compute Engine. Otherwise, the environment variable GOOGLE_APPLICATION_CREDENTIALS must be defined pointing to a file defining the credentials. See https://developers.google.com/accounts/docs/application-default-credentials for more information. 
    at com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.getDefaultCredential(DefaultCredentialProvider.java:95) 
    at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:213) 
    at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:191) 
    at com.google.cloud.sql.core.SslSocketFactory$ApplicationDefaultCredentialFactory.create(SslSocketFactory.java:545) 
    ... 57 more 
Caused by: 

java.io.IOException: The Application Default Credentials are not available. They are available if running in Google Compute Engine. Otherwise, the environment variable GOOGLE_APPLICATION_CREDENTIALS must be defined pointing to a file defining the credentials. See https://developers.google.com/accounts/docs/application-default-credentials for more information. 
    at com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.getDefaultCredential(DefaultCredentialProvider.java:95) 
    at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:213) 
    at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:191) 
    at com.google.cloud.sql.core.SslSocketFactory$ApplicationDefaultCredentialFactory.create(SslSocketFactory.java:545) 
    at com.google.cloud.sql.core.SslSocketFactory.getInstance(SslSocketFactory.java:140) 
    at com.google.cloud.sql.mysql.SocketFactory.connect(SocketFactory.java:48) 
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300) 
    at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2251) 
    at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) 
    at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) 
    at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) 
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance_(Runtime.java:140) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.newInstance(Runtime.java:148) 
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) 
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) 
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) 
    at java.sql.DriverManager.getConnection(DriverManager.java:664) 
    at java.sql.DriverManager.getConnection(DriverManager.java:270) 
    at com.azeem.endpoint.CloudSqlServlet.doGet(CloudSqlServlet.java:70) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) 
    at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:134) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:48) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectRequest(DevAppServerModulesFilter.java:366) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectModuleRequest(DevAppServerModulesFilter.java:349) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doFilter(DevAppServerModulesFilter.java:116) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:95) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:508) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:326) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) 
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) 
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) 
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) 
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J'essaie de se connecter avec le client mysql et il est excellent travail et aussi essayer de se connecter avec gcloud ça marche aussi. Ensuite, je télécharge un exemple de code à partir de gitHub et j'essaie ces codes. Tout fonctionne, alors je copie le même code à partir d'un échantillon mais ça ne fonctionne pas dans un projet existant.

Voici mon code.

CloudSqlServlet.java

package com.azeem.endpoint; 

import java.io.IOException; 
import java.io.PrintWriter; 
import java.net.Inet4Address; 
import java.net.Inet6Address; 
import java.net.InetAddress; 
import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.PreparedStatement; 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.sql.Timestamp; 
import java.util.Date; 

import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 

// [START example] 
@SuppressWarnings("serial") 
public class CloudSqlServlet extends HttpServlet { 

    @Override 
    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException, 
     ServletException { 
    String path = req.getRequestURI(); 
    if (path.startsWith("/favicon.ico")) { 
     return; // ignore the request for favicon.ico 
    } 
    // store only the first two octets of a users ip address 
    String userIp = req.getRemoteAddr(); 
    InetAddress address = InetAddress.getByName(userIp); 
    if (address instanceof Inet6Address) { 
     // nest indexOf calls to find the second occurrence of a character in a string 
     // an alternative is to use Apache Commons Lang: StringUtils.ordinalIndexOf() 
     userIp = userIp.substring(0, userIp.indexOf(":", userIp.indexOf(":") + 1)) + ":*:*:*:*:*:*"; 
    } else if (address instanceof Inet4Address) { 
     userIp = userIp.substring(0, userIp.indexOf(".", userIp.indexOf(".") + 1)) + ".*.*"; 
    } 

    final String createTableSql = "CREATE TABLE IF NOT EXISTS visits (visit_id INT NOT NULL " 
     + "AUTO_INCREMENT, user_ip VARCHAR(46) NOT NULL, timestamp DATETIME NOT NULL, " 
     + "PRIMARY KEY (visit_id))"; 
    final String createVisitSql = "INSERT INTO visits (user_ip, timestamp) VALUES (?, ?)"; 
    final String selectSql = "SELECT user_ip, timestamp FROM visits ORDER BY timestamp DESC " 
     + "LIMIT 10"; 

    PrintWriter out = resp.getWriter(); 
    resp.setContentType("text/plain"); 
    String url; 
    if (System 
     .getProperty("com.google.appengine.runtime.version").startsWith("Google App Engine/")) { 
     // Check the System properties to determine if we are running on appengine or not 
     // Google App Engine sets a few system properties that will reliably be present on a remote 
     // instance. 
     url = System.getProperty("ae-cloudsql.cloudsql-database-url"); 
     try { 
     // Load the class that provides the new "jdbc:google:mysql://" prefix. 
     Class.forName("com.mysql.jdbc.GoogleDriver"); 
     } catch (ClassNotFoundException e) { 
     throw new ServletException("Error loading Google JDBC Driver", e); 
     } 
    } else { 
     // Set the url with the local MySQL database connection url when running locally 
     url = System.getProperty("ae-cloudsql.local-database-url"); 
    } 
    log("connecting to: " + url); 
    try (Connection conn = DriverManager.getConnection(url); 
     PreparedStatement statementCreateVisit = conn.prepareStatement(createVisitSql)) { 
     conn.createStatement().executeUpdate(createTableSql); 
     statementCreateVisit.setString(1, userIp); 
     statementCreateVisit.setTimestamp(2, new Timestamp(new Date().getTime())); 
     statementCreateVisit.executeUpdate(); 

     try (ResultSet rs = conn.prepareStatement(selectSql).executeQuery()) { 
     out.print("Last 10 visits:\n"); 
     while (rs.next()) { 
      String savedIp = rs.getString("user_ip"); 
      String timeStamp = rs.getString("timestamp"); 
      out.print("Time: " + timeStamp + " Addr: " + savedIp + "\n"); 
     } 
     } 
    } catch (SQLException e) { 
     throw new ServletException("SQL error", e); 
    } 
    } 
}

Web.xml

<!-- Test Cloud SQL servlet --> 
    <servlet> 
    <servlet-name>cloudsql</servlet-name> 
    <servlet-class>com.azeem.endpoint.CloudSqlServlet</servlet-class> 
    </servlet> 
    <servlet-mapping> 
    <servlet-name>cloudsql</servlet-name> 
    <url-pattern>/cloudsql</url-pattern> 
    </servlet-mapping>

appengine-web.xml

<threadsafe>true</threadsafe> 
    <sessions-enabled>false</sessions-enabled> 

    <use-google-connector-j>true</use-google-connector-j> 

    <system-properties> 
    <property name="ae-cloudsql.cloudsql-database-url" value="jdbc:google:mysql://${INSTANCE_CONNECTION_NAME}/${database}?user=${user}&amp;password=${password}" /> 
    <property name="ae-cloudsql.local-database-url" value="jdbc:mysql://google/${database}?cloudSqlInstance=${INSTANCE_CONNECTION_NAME}&amp;socketFactory=com.google.cloud.sql.mysql.SocketFactory&amp;user=${user}&amp;password=${password}&amp;useSSL=false" /> 
    </system-properties>

pom.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?> 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 

    <modelVersion>4.0.0</modelVersion> 
    <packaging>war</packaging> 
    <version>0.1.0-SNAPSHOT</version> 

    <groupId>com.azeem.endpoint</groupId> 
    <artifactId>EndPoint</artifactId> 

    <properties> 
    <!-- INSTANCE_CONNECTION_NAME from Cloud Console > SQL > Instance Details > Properties 
    or gcloud sql instances describe <instance> 
    project:region:instance for Cloud SQL 2nd Generation or 
    project:instance  for Cloud SQL 1st Generation 
--> 
    <INSTANCE_CONNECTION_NAME>analog-premise-181709:asia-northeast1:instancename</INSTANCE_CONNECTION_NAME> 
    <user>root</user> 
    <password>password</password> 
    <database>databasename</database> 

    <appengine.maven.plugin.version>1.3.1</appengine.maven.plugin.version> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 
    <maven.compiler.source>1.7</maven.compiler.source> 
    <maven.compiler.target>1.7</maven.compiler.target> 
    <maven.compiler.showDeprecation>true</maven.compiler.showDeprecation> 
    </properties> 

    <prerequisites> 
    <maven>3.3.9</maven> 
    </prerequisites> 

    <dependencies> 

    <!-- Driver injected at runtime by the use of <use-google-connector-j> in appengine-web.xml --> 
    <dependency> <!-- ONLY USED LOCALY --> 
     <groupId>mysql</groupId> 
     <artifactId>mysql-connector-java</artifactId> 
     <version>5.1.42</version> <!-- v5.x.x is for production, v6.x.x EAP X DevAPI --> 
    </dependency> 
    <dependency> 
     <groupId>com.google.cloud.sql</groupId> 
     <artifactId>mysql-socket-factory</artifactId> 
     <version>1.0.4</version> 
    </dependency> 

    <!-- Compile/runtime dependencies --> 
    <dependency> 
     <groupId>javax.servlet</groupId> 
     <artifactId>servlet-api</artifactId> 
     <version>2.5</version> 
     <scope>provided</scope> 
    </dependency> 
    <dependency> 
     <groupId>jstl</groupId> 
     <artifactId>jstl</artifactId> 
     <version>1.2</version> 
    </dependency> 

    <!-- Test Dependencies --> 
    <dependency> 
     <groupId>junit</groupId> 
     <artifactId>junit</artifactId> 
     <version>4.12</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
<groupId>com.google.appengine</groupId> 
<artifactId>appengine-api-1.0-sdk</artifactId> 
<version>1.9.55</version> 
</dependency> 
<dependency> 
<groupId>com.google.endpoints</groupId> 
<artifactId>endpoints-framework</artifactId> 
<version>2.0.8</version> 
</dependency> 
</dependencies> 

    <build> 
    <!-- for hot reload of the web application--> 
    <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory> 
    <plugins> 
     <plugin> 
     <groupId>org.codehaus.mojo</groupId> 
     <artifactId>versions-maven-plugin</artifactId> 
     <version>2.3</version> 
     <executions> 
      <execution> 
      <phase>compile</phase> 
      <goals> 
       <goal>display-dependency-updates</goal> 
       <goal>display-plugin-updates</goal> 
      </goals> 
      </execution> 
     </executions> 
     </plugin> 

     <plugin> 
     <groupId>com.google.cloud.tools</groupId> 
     <artifactId>appengine-maven-plugin</artifactId> 
     <version>${appengine.maven.plugin.version}</version> 
     </plugin> 
    </plugins> 
    </build> 
</project>

J'entrez le nom d'instance et mot de passe et base de données, ici je supprimer tout simplement.

Pouvez-vous s'il vous plaît laissez-moi savoir pourquoi cela ne fonctionne pas. C'est très bien quand j'exécute un exemple de code.

Source

2017-10-06 Azeem Haider

+0

Si vous vous connectez depuis App Engine standard, vous utilisez la mauvaise bibliothèque. Veuillez suivre les instructions ici: https://cloud.google.com/appengine/docs/standard/java/cloud-sql/ – Vadim

+0

J'essaie de me connecter avec localhost. Si j'utilise une mauvaise bibliothèque alors pourquoi est-ce que ça marche quand je lance l'exemple de code? Je viens de copier ce code à partir d'échantillons –

+0

@Vadim Ok, j'ai changé la lib ne fonctionne toujours pas. J'ai trouvé une différence quand j'exécute du code exemple: mvn appengine: devserver' mais quand je lance mon code, il faut mvn appengine: run' est un problème –

Répondre

0

vous n'avez pas créé les informations d'identification par défaut, ni définir les la variable d'environnement GOOGLE_APPLICATION_CREDENTIALS ni credientials d'appel dans votre code, à l'exception que les informations d'identification par défaut sont fournis avec Google API client libraries qui ne figure pas dans votre pom.xml, pour l'ajouter:

<dependencies> 
    <dependency> 
    <groupId>com.google.api-client</groupId> 
    <artifactId>google-api-client</artifactId> 
    <version>1.22.0</version> 
    </dependency> 
    </dependencies>

to start

Source

2017-10-07 12:15:09

+0

J'ajoute cette 'dépendance 'mais ne fonctionne toujours pas. Je crée déjà des informations d'identification avec cette commande 'gcloud auth application-default login' –

+0

Si vous l'avez fait, quelle est l'erreur que vous rencontrez maintenant? –

+0

Rien ne change la même erreur –

 Questions connexes

  • Aucun problème connexe^_^