静态内部类的调用

Question

写文件下在的INTERCEPTOR时 如下:
public class DownLoadIntercept extends AbstractInterceptor {
@Override
public String intercept(ActionInvocation invocation) throws Exception {
invocation.addPreResultListener(new PreResultListener(){
@Override
public void beforeResult(ActionInvocation invocation,String resultCode) {
Map resultsMap=invocation.getProxy().getConfig().getResults();
ResultConfig finalResultConfig=resultsMap.get(resultCode);
finalResultConfig.Builder.addParam("contentType","application/msword")

}});
return null;
}
}
finalResultConfig.Builder.addParam("contentType","application/msword")这句显示编译错误
查看了一下ResultConfig这个类的源代码
public class ResultConfig extends Located implements Serializable {
private Map params;
...
...
public static final class Builder {
...
....
public Builder addParam(String name, String value) {
target.params.put(name, value);
return this;
}
}
ResultConfig 类里面有一个MAP params 但类没有SET MAP方法
类是用静态内部类Builder 的方法addParam来设置的
但问题是怎样调用这个内部类的方法?
ResultConfig.Builder.this.addParam("contentType","application/msword")
都不行?
请教!

Answer 1

这样调用
[code="java"]
new ResultConfig.Builder().addParam("contentType","application/msword");
[/code]