TestExternal3.java

package com.alibaba.json.bvt;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;

import com.alibaba.fastjson.parser.ParserConfig;
import org.junit.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 {
    protected void setUp() throws Exception {
        ParserConfig.global.addAccept("external.VO");
    }

    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);
        String clazzName = JSON.parse(text).getClass().getName();
        Assert.assertEquals(clazz.getName(), clazzName);
    }
    
    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);
        }
    }
}