code: public void finishMapJson(final Object... objs) {
          this.contentType = this.jsonContentType;
          if (this.recycleListener != null) this.output = objs;
          finish(request.getJsonConvert().convertMapTo(getBodyBufferSupplier(), objs));
      }
docs: 将对象数组用Map的形式以JSON格式输出 <br>
  例如: finishMap("a",2,"b",3) 输出结果为 {"a":2,"b":3}
  
  @param objs 输出对象