前两天做了一个SSH零配置实例，里面引入了Json插件，但发现对于继承其它Action的返回结果中没有父Action的属性。

今天看了一下JSONResult类的相关属性，从而明了解决方法。

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JSONResult类中的属性和默认值：

public class JSONResult implements Result
{
	
    private String defaultEncoding;
    private List includeProperties;
    private List excludeProperties;
    private String root;
    private boolean wrapWithComments;
    private boolean prefix;
    private boolean enableSMD;
    private boolean enableGZIP;
    private boolean ignoreHierarchy; //设置这个为false解决不能继承的问题
    private boolean ignoreInterfaces;
    private boolean enumAsBean;
    private boolean noCache;
    private boolean excludeNullProperties;
    private int statusCode;
    private int errorCode;
    private String callbackParameter;
    private String contentType;
    private String wrapPrefix;
    private String wrapSuffix;

    public JSONResult()
    {
        defaultEncoding = "ISO-8859-1";
        enableSMD = false;
        enableGZIP = false;
        ignoreHierarchy = true;
        ignoreInterfaces = true;
        enumAsBean = false;
        noCache = false;
        excludeNullProperties = false;
    }
}

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Struts配置result：

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		<global-results>
			<result name="json" type="json">
				<param name="ignoreHierarchy">false</param>
			</result>
		</global-results>

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OK，MARK！