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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="org.json.simple.*" %>

在upload_json.jsp页面内，The import org.json cannot be resolved

<%!
private String getError(String message) {
 JSONObject obj = new JSONObject();
 obj.put("error", 1);
 obj.put("message", message);
 return obj.toJSONString();
}
%>

 后台报 JSONObject  cannot be resolved to a type  错误，该怎么解决啊？

急需要答案