无法加载com.mchange.v2.log.log4j.Log4jMLog

zjqw1223kyo 2015-07-14 03:21:55
今天看视频学用C3P0,执行以后就会出现
com.mchange.v2.log.MLog 'com.mchange.v2.log.log4j.Log4jMLog' could not be loaded!
java.lang.ClassNotFoundException: org.apache.log4j.Logger
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.mchange.v2.log.log4j.Log4jMLog.<init>(Log4jMLog.java:52)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at com.mchange.v2.log.MLog.findByClassnames(MLog.java:125)
at com.mchange.v2.log.MLog.<clinit>(MLog.java:60)
at com.mchange.v2.naming.JavaBeanReferenceMaker.<clinit>(JavaBeanReferenceMaker.java:51)
at com.mchange.v2.c3p0.impl.PoolBackedDataSourceBase.<clinit>(PoolBackedDataSourceBase.java:220)
at com.test.jdbc01.testC3P0.C3P0TestWithConfigfile(testC3P0.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
七月 14, 2015 3:19:40 下午 com.mchange.v2.log.MLog
信息: MLog clients using java 1.4+ standard logging.
七月 14, 2015 3:19:40 下午 com.mchange.v2.c3p0.C3P0Registry
信息: Initializing c3p0-0.9.5-pre2 [built 23-April-2013 02:39:24 -0700; debug? true; trace: 10]
七月 14, 2015 3:19:40 下午 com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource
信息: Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 50, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, dataSourceName -> helloC3P0, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> oracle.jdbc.driver.OracleDriver, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 1hge15w9a12ordzs1xyt2ej|27ddd392, idleConnectionTestPeriod -> 0, initialPoolSize -> 5, jdbcUrl -> jdbc:oracle:thin:@127.0.0.1:1521:XE, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 50, maxStatements -> 20, maxStatementsPerConnection -> 5, minPoolSize -> 10, numHelperThreads -> 3, preferredTestQuery -> null, properties -> {user=******, password=******}, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, userOverrides -> {}, usesTraditionalReflectiveProxies -> false ]

com.mchange.v2.c3p0.impl.NewProxyConnection@62043840

虽然最后显示了数据库连接信息,但是上面也现了无法连接com.mchange.v2.log.log4j.Log4jMLog,我想请问各位大大,这个应该如何解决。
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zjqw1223kyo 2015-07-15
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都没有人指导我一下吗?我都不知道要怎么办,百度上面也没有。
activation-1.1.jar antlr-2.7.2.jar aopalliance-1.0.jar aopalliance.jar apache-commons-codec-1.4.jar asm-3.3.1.jar asm-3.3.jar asm-commons-3.3.jar asm-tree-3.3.jar axis2-java2wsdl-1.0.jar builder-0.6.2.jar c3p0-0.9.1.2.jar cglib-2.2.2.jar cglib-2.2.jar classworlds-1.1.jar com.springsource.com.mchange.v2.c3p0-0.9.1.2.jar com.springsource.net.sf.cglib-2.2.0.jar com.springsource.org.aopalliance-1.0.0.jar com.springsource.org.aopalliance-sources-1.0.0.jar com.springsource.org.apache.commons.logging-1.1.1.jar com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar commons-beanutils-1.8.0.jar commons-beanutils-1.8.3.jar commons-chain-1.2.jar commons-codec-1.10.jar commons-codec-1.9.jar commons-collections-3.1.jar commons-collections-3.2.jar commons-dbcp-1.2.jar commons-digester-2.0.jar commons-fileupload-1.2.jar commons-fileupload-1.3.2.jar commons-fileupload-1.3.jar commons-io-1.3.1.jar commons-io-2.0.1.jar commons-io-2.2.jar commons-lang-2.4.jar commons-lang3-3.1.jar commons-lang3-3.2.jar commons-logging-1.1.1.jar commons-logging-1.1.3.jar commons-logging-1.2.jar commons-logging-api-1.1.jar commons-validator-1.3.1.jar core-0.6.2.jar cxf-api-2.7.4.jar cxf-rt-bindings-soap-2.7.4.jar cxf-rt-bindings-xml-2.7.4.jar cxf-rt-core-2.7.4.jar cxf-rt-databinding-jaxb-2.7.4.jar cxf-rt-frontend-jaxws-2.7.4.jar cxf-rt-frontend-simple-2.7.4.jar cxf-rt-transports-http-2.7.4.jar cxf-rt-ws-addr-2.7.4.jar cxf-rt-ws-policy-2.7.4.jar cxf-site-export-1.0-20130910.143757-9.jar dom4j-1.6.1.jar druid-1.0.12.jar dwr-1.1.1.jar ezmorph-1.0.6.jar fastjson-1.1.15.jar freemarker-2.3.19.jar freemarker-2.3.22.jar geronimo-javamail_1.4_spec-1.7.1.jar geronimo-jta_1.1_spec-1.1.1.jar google-collections-1.0.jar google-gxp-0.2.4-beta.jar gson-2.2.4.jar guava-r09.jar httpclient-4.4.jar httpcore-4.4.jar jackson-annotations-2.5.0.jar jackson-core-2.5.0.jar jackson-core-asl-1.9.2.jar jackson-databind-2.3.4.jar jackson-databind-2.5.0.jar jackson-mapper-asl-1.9.2.jar jackson-module-jaxb-annotations-2.1.0.jar jai_imag

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