java—当我尝试测试使用从tomcat中的jndi连接轮询获得的连接的dao方法时，我没有得到initialContextException

72qzrwbm  于 2021-10-10  发布在  Java
关注(0)|答案(0)|浏览(250)

我有一个通过使用jndi查找获取连接的方法。
context.xml

  1. <Context>
  2.     <Resource
  3.             name="jdbc/UsersDB"
  4.             auth="Container"
  5.             type="javax.sql.DataSource"
  6.             maxTotal="30"
  7.             maxIdle="15"
  8.             driverClassName="com.mysql.cj.jdbc.Driver"
  9.             url="jdbc:mysql://localhost:3306/taksi_online"
  10.             username="Bruce"
  11.             password="givanchy"
  12.             defaultAutoCommit="false"
  13.     />
  14. </Context>

web.xml

  1. <resource-ref>
  2.         <description>DB Connection</description>
  3.         <res-ref-name>jdbc/UsersDB</res-ref-name>
  4.         <res-type>javax.sql.DataSource</res-type>
  5.         <res-auth>Container</res-auth>
  6.     </resource-ref>
  8. public static void dataSourceInit() throws NamingException {
  9.             Context initContext = new InitialContext();
  10.             Context envContext = (Context) initContext.lookup("java:comp/env");
  11.             dataSource = (DataSource) envContext.lookup("jdbc/UsersDB");
  12.     }
  13.     public static Connection getConnection() throws NamingException, SQLException {
  14.         if(dataSource==null){
  15.             dataSourceInit();
  16.         }
  17.        Connection connection = null;
  18.         try {
  19.             connection = dataSource.getConnection();
  20.         } catch (SQLException e) {
  21.             LOGGER.error(e);
  22.             throw new SQLException(e);
  23.         }
  24.         return connection;
  25.     }

我有一些简单的测试dao方法，它们使用方法getconnection

  1. class TaxiServiceCarTest {
  2.     private OrderDao orderDao;
  3.     private TaxiServiceOrder orderService;
  4.     @BeforeEach
  5.     void initTaxiService() {
  6.         orderDao = mock(OrderDao.class);
  7.         orderService = new TaxiServiceOrder(orderDao);
  8.     }
  9.     @Test
  10.     void insertCar() throws MySQLEXContainer.MySQLDBLargeDataException, SQLException, MySQLEXContainer.MySQLDBExecutionException, ApplicationEXContainer.ApplicationCanNotChangeException {
  11.         Order order = new Order();
  12.         when(orderDao.insertOrder(any(Connection.class), any(Order.class))).thenReturn(true);
  13.         assertTrue(orderService.insertOrder(order));
  14.     }
  15. }

当我尝试运行此测试时，我没有得到initialContextException.ApplicationExcontainer，它是我的自定义异常。

  1. com.example.FinalProjectPM.db.exception.ApplicationEXContainer$ApplicationCanNotChangeException: javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file:  java.naming.factory.initial
  3.     at com.example.FinalProjectPM.db.services.TaxiServiceOrder.insertOrder(TaxiServiceOrder.java:30)
  4.     at com.example.FinalProjectPM.db.services.TaxiServiceCarTest.insertCar(TaxiServiceCarTest.java:30)
  5.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  6.     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  7.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  8.     at java.lang.reflect.Method.invoke(Method.java:498)
  9.     at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:688)
  10.     at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
  11.     at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
  12.     at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)
  13.     at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140)
  14.     at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84)
  15.     at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)
  16.     at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)
  17.     at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
  18.     at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
  19.     at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
  20.     at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
  21.     at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)
  22.     at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)
  23.     at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:210)
  24.     at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  25.     at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:206)
  26.     at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:131)
  27.     at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:65)
  28.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
  29.     at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  30.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
  31.     at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
  32.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
  33.     at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  34.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
  35.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
  36.     at java.util.ArrayList.forEach(ArrayList.java:1259)
  37.     at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
  38.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:143)
  39.     at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  40.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
  41.     at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
  42.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
  43.     at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  44.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
  45.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
  46.     at java.util.ArrayList.forEach(ArrayList.java:1259)
  47.     at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
  48.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:143)
  49.     at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  50.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:129)
  51.     at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
  52.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:127)
  53.     at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  54.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:126)
  55.     at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:84)
  56.     at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
  57.     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
  58.     at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
  59.     at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:108)
  60.     at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
  61.     at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
  62.     at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
  63.     at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
  64.     at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:96)
  65.     at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:75)
  66.     at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:71)
  67.     at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
  68.     at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
  69.     at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
  70. Caused by: javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file:  java.naming.factory.initial
  71.     at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
  72.     at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313)
  73.     at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:350)
  74.     at javax.naming.InitialContext.lookup(InitialContext.java:417)
  75.     at com.example.FinalProjectPM.db.mysql.MySQLDAOFactory.dataSourceInit(MySQLDAOFactory.java:21)
  76.     at com.example.FinalProjectPM.db.mysql.MySQLDAOFactory.getConnection(MySQLDAOFactory.java:27)
  77.     at com.example.FinalProjectPM.db.services.TaxiServiceOrder.insertOrder(TaxiServiceOrder.java:25)
  78.     ... 66 more

为什么会出现此问题？我的webapp使用此连接轮询，因此我不认为我在配置上下文文件时出错，上下文似乎未注册。

Javajunitunit-testingtomcatjndi

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