今天剛學習mybatis，遇到了一個錯誤，糾結了半天的時間，所以將發現的問題和解決得方法寫一下。
錯誤信息如下：
java.lang.ExceptionInInitializerError at com.ibatis.po.TestSysArea.testInsert(TestSysArea.java:31) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) 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.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) 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: java.lang.RuntimeException: Error occurred. Cause: com.ibatis.common.xml.NodeletException: Error parsing XML. Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMapConfig/sqlMap'. Cause: com.ibatis.common.xml.NodeletException: Error parsing XML. Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMap/insert'. Cause: com.ibatis.common.beans.ProbeException: There is no READABLE property named 'AreaCode' in class 'com.ibatis.po.SysArea' at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser.parse(SqlMapConfigParser.java:89) at com.ibatis.sqlmap.client.SqlMapClientBuilder.buildSqlMapClient(SqlMapClientBuilder.java:63) at com.ibatis.po.SysAreaDaoImpl.<clinit>(SysAreaDaoImpl.java:19) ... 23 more Caused by: com.ibatis.common.xml.NodeletException: Error parsing XML. Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMapConfig/sqlMap'. Cause: com.ibatis.common.xml.NodeletException: Error parsing XML. Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMap/insert'. Cause: com.ibatis.common.beans.ProbeException: There is no READABLE property named 'AreaCode' in class 'com.ibatis.po.SysArea' at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:53) at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser.parse(SqlMapConfigParser.java:86) ... 25 more Caused by: java.lang.RuntimeException: Error parsing XPath '/sqlMapConfig/sqlMap'. Cause: com.ibatis.common.xml.NodeletException: Error parsing XML. Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMap/insert'. Cause: com.ibatis.common.beans.ProbeException: There is no READABLE property named 'AreaCode' in class 'com.ibatis.po.SysArea' at com.ibatis.common.xml.NodeletParser.processNodelet(NodeletParser.java:123) at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:84) at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:102) at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:72) at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:51) ... 26 more Caused by: com.ibatis.common.xml.NodeletException: Error parsing XML. Cause: java.lang.RuntimeException: Error parsing XPath '/sqlMap/insert'. Cause: com.ibatis.common.beans.ProbeException: There is no READABLE property named 'AreaCode' in class 'com.ibatis.po.SysArea' at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:53) at com.ibatis.sqlmap.engine.builder.xml.SqlMapParser.parse(SqlMapParser.java:51) at com.ibatis.sqlmap.engine.builder.xml.SqlMapConfigParser$11.process(SqlMapConfigParser.java:410) at com.ibatis.common.xml.NodeletParser.processNodelet(NodeletParser.java:121) ... 30 more Caused by: java.lang.RuntimeException: Error parsing XPath '/sqlMap/insert'. Cause: com.ibatis.common.beans.ProbeException: There is no READABLE property named 'AreaCode' in class 'com.ibatis.po.SysArea' at com.ibatis.common.xml.NodeletParser.processNodelet(NodeletParser.java:123) at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:84) at com.ibatis.common.xml.NodeletParser.process(NodeletParser.java:102) at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:72) at com.ibatis.common.xml.NodeletParser.parse(NodeletParser.java:51) ... 33 more Caused by: com.ibatis.common.beans.ProbeException: There is no READABLE property named 'AreaCode' in class 'com.ibatis.po.SysArea' at com.ibatis.common.beans.ClassInfo.getGetterType(ClassInfo.java:287) at com.ibatis.common.beans.GenericProbe.getClassPropertyTypeForGetter(GenericProbe.java:224) at com.ibatis.common.beans.GenericProbe.getPropertyTypeForGetter(GenericProbe.java:153) at com.ibatis.sqlmap.engine.mapping.parameter.InlineParameterMapParser.resolveTypeHandler(InlineParameterMapParser.java:229) at com.ibatis.sqlmap.engine.mapping.parameter.InlineParameterMapParser.newParseMapping(InlineParameterMapParser.java:138) at com.ibatis.sqlmap.engine.mapping.parameter.InlineParameterMapParser.parseInlineParameterMap(InlineParameterMapParser.java:50) at com.ibatis.sqlmap.engine.builder.xml.SqlStatementParser.applyInlineParameterMap(SqlStatementParser.java:427) at com.ibatis.sqlmap.engine.builder.xml.SqlStatementParser.processSqlStatement(SqlStatementParser.java:215) at com.ibatis.sqlmap.engine.builder.xml.SqlStatementParser.parseGeneralStatement(SqlStatementParser.java:120) at com.ibatis.sqlmap.engine.builder.xml.SqlMapParser$19.process(SqlMapParser.java:563) at com.ibatis.common.xml.NodeletParser.processNodelet(NodeletParser.java:121) ... 37 more
這個問題主要是因為在SysArea 配置文件中，由於SQL語句中賦值語句中變量首字母大寫的緣故，所以會報這樣的錯誤，只要我們在寫語句時和PO中的屬性名一致即可。