1.错误描述 Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/beanutils/DynaBean at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:230) at net.sf.json.JSONArray._processValue(JSONArray.java:2513) at net.sf.json.J…

1.错误描述 Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/collections/map/ListOrderedMap at net.sf.json.JSONObject.<init>(JSONObject.java:1450) at net.sf.json.util.CycleDetectionStrategy.<clinit>(CycleDetec…

1.错误描述 Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory at net.sf.json.AbstractJSON.<clinit>(AbstractJSON.java:53) at com.you.model.ListToJSON.main(ListToJSON.java:29) Caused by: java.lang.Cl…

1.错误描述 Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/lang/exception/NestableRuntimeException at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.…

1.错误描述 Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher at net.sf.json.util.CycleDetectionStrategy.<clinit>(CycleDetectionStrategy.java:37) at net.sf.json.JsonConfig.<clinit>(JsonConfig.java:65) at ne…

java中汉字自动转换成拼音 1.需要下载jar包 pinyin4j.2.5.0.jar ,加入到WEB-INF下的lib里边,右键add to bulid path. 2.[代码]PinYinUtil…

package com.wangbo.util; import java.beans.IntrospectionException; import java.beans.Introspector; import java.beans.PropertyDescriptor; import java.math.BigDecimal; import java.math.BigInteger; import java.util.HashMap; import java.util.List; import…

项目中发现别人写好的操作系统相关的工具类: 我总结的类似相关博客:http://www.cnblogs.com/DreamDrive/p/4289860.html import java.net.InetAddress; import java.net.UnknownHostException; import java.util.List; /** * OS Utility Class This is used to obtain the os related var programmatica…

Jar包…

自从JDK7更新之后,新增了二进制变量的表示,支持将整数类型用二进制来表示,用0b开头: 例如: byte b= (byte) 0b1000_0001; short s = (short) 0b1000_0000_0000_0001; 新手在这个时候会遇到一个问题,为啥byte b=0b100_00001会报错(cannot convert from int to byte) 而short b=0b100_00001又不会呢?既然java底层默认0b100_00001是int类型,为什么shor…