无法连接到Bluemix中的mongodb，未能找到证书路径

Question

我无法从我部署的bluemix应用程序连接到我的Compose MongoDB服务。它似乎无法找到必要的证书。我曾预料它会直接从环境变量VCAP_SERVICES中选择它。

我可以从我的本地测试环境运行此罚款，因为我将密钥导入到Java中适当的密钥库中。

如果我在bluemix上查看它们的node.js示例，它们实际上是在连接期间传递证书。但是，我无法在Java API的任何位置找到它。

我相信我需要将这个证书添加到bluemix上的虚拟机（看起来不太可能），或者当我不能（看不到）时，我需要通过Java驱动程序传递它。

想法？

根据记录，这是例外，我得到：

com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting for a server that matches 
ReadPreferenceServerSelector{readPreference=primary}. Client view of 
cluster state is {type=UNKNOWN, servers=[{address=bluemix-sandbox-dal-9-portal.7.dblayer.com:26123, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketWriteException: Exception sending message}, caused by {javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target}, caused by {sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target}, caused by {sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target}}, {address=bluemix-sandbox-dal-9-portal.6.dblayer.com:26123, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketWriteException: Exception sending message}, caused by {javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target}, caused by {sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target}, caused by {sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target}}] 
com.mongodb.connection.BaseCluster.createTimeoutException(BaseCluster.java:377) 
com.mongodb.connection.BaseCluster.selectServer(BaseCluster.java:104) 
com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.<init>(ClusterBinding.java:75) 
com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.<init>(ClusterBinding.java:71) 
com.mongodb.binding.ClusterBinding.getReadConnectionSource(ClusterBinding.java:63) 
com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:402) 
com.mongodb.operation.FindOperation.execute(FindOperation.java:510) 
com.mongodb.operation.FindOperation.execute(FindOperation.java:81) 
com.mongodb.Mongo.execute(Mongo.java:836) 
com.mongodb.Mongo$2.execute(Mongo.java:823) 
com.mongodb.FindIterableImpl$FindOperationIterable.first(FindIterableImpl.java:216) 
com.mongodb.FindIterableImpl.first(FindIterableImpl.java:156) 
com.ibm.smarts.experiment.UserMgr.getUserDetails(UserMgr.java:146) 
com.ibm.smarts.experiment.UserMgr.authenticateUser(UserMgr.java:123) 
com.ibm.smarts.experiment.servlet.LoginServlet.doPost(LoginServlet.java:31) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:648) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 

Answer 1

有记载here几个选项。例如：

将该证书导入到Java信任库文件，将该文件打包到Java应用程序并通过JAVA_OPTS环境变量指定其路径;信任库文件可以放在资源目录下。这可以被用于单个应用程序：

通过使用 'CF设定-ENV' 命令：

cf set-env <app> JAVA_OPTS '-Djavax.net.ssl.TrustStore=classpath:resources/config/truststore' 

通过使用manifest.yml：

--- 
applications: 
- name: java-app 
    ... 
    env: 
    JAVA_OPTS: '-Djavax.net.ssl.TrustStore=classpath:resources/config/truststore'