java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher

在用json时,已经导入<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<version>2.4</version>
<classifier>jdk15</classifier>
  </dependency>
报错：
java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher
解决办法：导入下面包
<dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.9.2</version>
        </dependency>
        <dependency>
            <groupId>net.sf.ezmorph</groupId>
            <artifactId>ezmorph</artifactId>
            <version>1.0.6</version>
        </dependency>