使用Json时，由于缺少jar包导致可能出现的所有异常的总结

喜欢ヅ旅行 2022-09-22 15:51 107阅读 0赞

1. java.lang.NoClassDefFoundError: org/apache/commons/lang/exception/NestableRuntimeException

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/lang/exception/NestableRuntimeException
      at java.lang.ClassLoader.defineClass1(Native Method)
      at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
      at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
      at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
      at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
      at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
      at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
      at com.syxp.yjxx.test.Test1.<init>(Test1.java:54)
      at com.syxp.yjxx.test.Test1.main(Test1.java:110)
    Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.exception.NestableRuntimeException
      at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
      ... 14 more

解决办法：需要导入commons-lang-2.5.jar包

2.java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory

at net.sf.jasperreports.engine.fill.JRBaseFiller.<clinit>(JRBaseFiller.java:95)
    at net.sf.jasperreports.engine.fill.JRFiller.createFiller(JRFiller.java:147)
    at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:57)
    at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:402)
    at net.sf.jasperreports.engine.JasperRunManager.runReportToHtmlFile(JasperRunManager.java:441)
    at org.apache.jsp.ireportTest.ireportTest_jsp._jspService(org.apache.jsp.ireportTest.ireportTest_jsp:86)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:99)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    at java.lang.Thread.run(Thread.java:619)

解决办法：需要导入 commons-logging-1.1.1.jar 包

3 .java.lang.NoClassDefFoundError: org/apache/commons/collections/map/ListOrderedMap

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/collections/map/ListOrderedMap
    at net.sf.json.JSONObject.<init>(JSONObject.java:1529) at net.sf.json.util.CycleDetectionStrategy.<clinit>(CycleDetectionStrategy.java:37) at net.sf.json.JsonConfig.<clinit>(JsonConfig.java:58) at net.sf.json.JSONArray.fromObject(JSONArray.java:127) at JsonTest.main(JsonTest.java:8) Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.map.ListOrderedMap at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) ... 5 more

解决办法：需要导入 commons-collections-3.1.jar 包

总之，使用json时需要用到的jar包有以下几个（版本不限）：

commons-beanutils-1.7.0.jar

commons-collections-3.1.jar

commons-lang-2.5.jar

commons-logging-1.1.1.jar

ezmorph-1.0.3.jar

json-lib-2.2.2-jdk15.jar