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请问下如何能把数据库中的数据转化成json格式然后在网页中调用,不用php

请问下如何能把数据库中的数据转化成json格式然后在网页中调用,不用php

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慕勒0069038

TA贡献143条经验 获得超39个赞

public String resultSetToJson(ResultSet rs) throws SQLException,JSONException  

{  

   // json数组  

   JSONArray array = new JSONArray();  

    

   // 获取列数  

   ResultSetMetaData metaData = rs.getMetaData();  

   int columnCount = metaData.getColumnCount();  

    

   // 遍历ResultSet中的每条数据  

    while (rs.next()) {  

        JSONObject jsonObj = new JSONObject();  

         

        // 遍历每一列  

        for (int i = 1; i <= columnCount; i++) {  

            String columnName =metaData.getColumnLabel(i);  

            String value = rs.getString(columnName);  

            jsonObj.put(columnName, value);  

        }   

        array.put(jsonObj);   

    }  

    

   return array.toString();  

}  


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1 反对 回复 2017-04-17
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慕瓜9220888

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反对 回复 2021-10-19
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