Spring MVC Hibernate JUnit 测试失败原因：java.net.ConnectException：连接超时：连接

【问题标题】：Spring MVC Hibernate JUnit Test failed Caused by: java.net.ConnectException: Connection timed out: connectSpring MVC Hibernate JUnit 测试失败原因：java.net.ConnectException：连接超时：连接
【发布时间】：2014-01-29 13:12:10
【问题描述】：

我遇到了一个奇怪的问题：在开发 Spring MVC 应用程序期间，我已经正确配置了休眠并且可以进行不同的 CRUD 操作。 但是后来我尝试编写一个小的 JUnit 测试来检查查询的正确性并遇到了令人困惑的情况：

    java.lang.IllegalStateException: Failed to load ApplicationContext
at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:99)
at org.springframework.test.context.DefaultTestContext.getApplicationContext(DefaultTestContext.java:101)
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:155)
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:100)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:326)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:212)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from URL [file:src/test/resources/hibernate.cfg.xml]; nested exception is java.net.ConnectException: Connection timed out: connect
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:409)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:335)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:303)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:216)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:187)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:251)
    at org.springframework.test.context.web.GenericXmlWebContextLoader.loadBeanDefinitions(GenericXmlWebContextLoader.java:38)
    at org.springframework.test.context.web.AbstractGenericWebContextLoader.loadContext(AbstractGenericWebContextLoader.java:126)
    at org.springframework.test.context.web.AbstractGenericWebContextLoader.loadContext(AbstractGenericWebContextLoader.java:60)
    at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:100)
    at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:250)
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal(CacheAwareContextLoaderDelegate.java:64)
    at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:91)
    ... 25 more
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.TwoStacksPlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at sun.net.NetworkClient.doConnect(Unknown Source)
    at sun.net.www.http.HttpClient.openServer(Unknown Source)
    at sun.net.www.http.HttpClient.openServer(Unknown Source)
    at sun.net.www.http.HttpClient.<init>(Unknown Source)
    at sun.net.www.http.HttpClient.New(Unknown Source)
    at sun.net.www.http.HttpClient.New(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startDTDEntity(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl.setInputSource(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.dispatch(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
    at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:76)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadDocument(XmlBeanDefinitionReader.java:428)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
    ... 38 more

这是我的测试：

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import junit.framework.Assert;
import junit.framework.TestCase;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;

import sbk.nmf.neman.entity.TimeScale;
import sbk.nmf.neman.service.IScaleUpdaterService;

@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration(locations = {                                     
                                    "file:src/main/webapp/web-inf/spring/FrontController/servlet-context.xml",
                                    "file:src/main/webapp/web-inf/spring/root-context.xml",
                                    "file:src/main/webapp/web-inf/spring/data.xml",
                                    "file:src/main/resources/hibernate.cfg.xml",    
                                    "file:src/main/webapp/web-inf/spring/jdbc/jdbc.properties"
                                  })
public class TimeScaleUpdTest extends TestCase  { 
    @Autowired
    IScaleUpdaterService scaleUpdaterService;

    @Test
    public void CreateTest() { 
        Date d = scaleUpdaterService.getLastTimeScaleDate();        
        try {
            Assert.assertEquals(new SimpleDateFormat( "yyyyMMdd" ).parse( "20150106" ), d);
        } catch (ParseException e) {            
            e.printStackTrace();
        }   
    } 
    public IScaleUpdaterService getScaleUpdaterService() {
        return scaleUpdaterService;
    } 
    public void setTrampsService(IScaleUpdaterService scaleUpdaterService) {
        this.scaleUpdaterService = scaleUpdaterService;
    } 
}

数据库可访问，休眠文件配置正确。有什么建议么？谢谢

【问题讨论】：

    标签： java spring hibernate spring-mvc junit


    【解决方案1】：

    假设您使用 Maven 或 Ant 等命令行工具配置了构建，请尝试使用该命令行工具（例如，mvn clean）发出一个干净的命令，然后在 Eclipse 中运行测试之前也在 Eclipse 中刷新项目.请参阅this 线程。您还可以检查是否可以通过命令行工具（例如 mvn test）运行测试。祝你好运——你会得到它的！

    【讨论】：

    • 你的意思是我应该退出 eclipse 并从命令行使 mvn clean ？
    • 应该能够让 Eclipse 保持打开状态，然后在您的 mvn clean 之后刷新项目，但是您当然可以退出 Eclipse，运行 mvn clean，然后如果您愿意，可以重新启动它。通过刷新项目，我的意思是在项目资源管理器中右键单击它并选择刷新（或使用 F5）。
    • 使用 Maven 从命令行只运行一个有问题的测试可能会有所帮助——即 mvn -Dtest=TimeScaleUpdTest test
    • 或者，视情况而定... mvn -Dtest=TimeScaleUpdTest integration-test
    【解决方案2】：

    Spring 似乎正在尝试获取 XML DTD（以验证 XML）。您的任何 XML 配置文件（Spring、Hibernate、...）是否通过 HTTP URL 引用 DTD？如果是这样，请尝试手动获取该 DTD（例如使用您的 Web 浏览器）以查看您是否可以连接到该 URL。如果不是，那是你的问题。

    【讨论】：

    • 是的 hibernate cfg 使用 hibernate.sourceforge.net/hibernate-configuration-3.0.dtd 但是当我尝试从 jsp 页面进行查询时它可以工作。只有junit测试不起作用
    • 但是你是对的，我无法通过浏览器访问这个 dtd。可以本地连接吗？
    • 是的，您可以将 dtd 放在本地文件系统上并将 XML 声明指向它。
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