阿里JSon开源组件fastjson应用

1:maven配置
<dependency>
 <groupId>com.alibaba</groupId>
 <artifactId>fastjson</artifactId>
 <version>1.1.24</version>
</dependency>

2：解析类
public interface Decode<I, O> {
 O parseObj(I input, O O);
}

public class DecodeImpl implements Decode<String, Object> {

 @Override
 public Object parseObj(String jsonStr, Object object) {
  Object result = JSON.parseObject(jsonStr, object.getClass());
  return result;
 }

}

3：实例如下：
PostAction postAction = new PostAction();
String resultStr = postAction.getPostMethod();
ResponseJSon responseJSon = (ResponseJSon) JSON.parseObject(resultStr, ResponseJSon.class);

4：如果ajax前台返回值，可以通过如下把值写入大response中去：
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/html;charset=GBK");
response.getWriter().println("hello world!");