content: package com.alibaba.json.bvt;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.lang.reflect.Method;
  
  import junit.framework.Assert;
  import junit.framework.TestCase;
  
  import org.apache.commons.io.IOUtils;
  
  import com.alibaba.fastjson.JSON;
  import com.alibaba.fastjson.JSONObject;
  import com.alibaba.fastjson.serializer.SerializerFeature;
  
  
  public class TestExternal3 extends TestCase {
      public void test_0 () throws Exception {
          ExtClassLoader classLoader = new ExtClassLoader();
          Class<?> clazz = classLoader.loadClass("external.VO");
          Method method = clazz.getMethod("setName", new Class[] {String.class});
          Object obj = clazz.newInstance();
          method.invoke(obj, "jobs");
          
          String text = JSON.toJSONString(obj, SerializerFeature.WriteClassName);
          System.out.println(text);
          JSON.parseObject(text, clazz);
          JSONObject jsonObj = JSON.parseObject(text);
          Assert.assertEquals(jsonObj.getString("@type"), "external.VO");
      }
      
      public static class ExtClassLoader extends ClassLoader {
          public ExtClassLoader() throws IOException{
              super(Thread.currentThread().getContextClassLoader());
              
              byte[] bytes;
              InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("external/VO.clazz");
              bytes = IOUtils.toByteArray(is);
              is.close();
              
              super.defineClass("external.VO", bytes, 0, bytes.length);
          }
      }
  }
  