Question

我有一个Json文件，如下所示：

{   
"fileExtension":["xls","xlsx"],
"fileType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"fileName": "Dummy123",
"worksheetCount":"3",
"worksheetList":["ws1","ws2","ws3"],
"worksheet":
{
    "ws1":
    {
        "worksheetName":"Employee Info",
        "sectionCount":"1",
        "sectionList":["Employee"],
        "sectionName":"Employee",
        "sectionType":"table",
        "Employee":
        {
            "columnCount": "3",
            "beginningRowNumber": "2",
            "endingRowNumber": "7",
            "columnList":[
            "columns":
              {
                "c1":
                {
                    "c1_header": "EMP ID",
                    "c1_datatype" :"Numeric"
                },  
                "c2":
                {
                    "c2_header": "EMP NAME",
                    "c2_datatype" : "String"
                },
                "c3":
                {
                    "c3_header": "DESIGNATION",
                    "c3_datatype":"String"
                }
            }

        }
    }
}
}

此处的工作表计数和部分计数以及列数会因“ws1”等每个对象而异。我的json中有许多对象，如ws1。但是在每个部分中，部分计数和列数都有所不同，每个部分和每个列都有json对象，我想得到每个部分和列以及工作表的值，而不重复我的代码。有人可以帮帮我。

Answer 1

JSJSONObject worksheets=rootobject.getJSONObject("worksheet");
JSONArray worksheetName=rootobject.getJSONArray("worksheetList");
int lenght=worksheetName.lenght();

for(int i=0;i<lenght;i++)
{
    JSJSONObject ws=worksheets.getJSONObject(worksheetName.getString(i));
    JSONArray sectionList=rootobject.getJSONArray("sectionList");
    for(int j=0;j<sectionList.lenght();j++)
    {
        JSJSONObject section=ws.getJSONObject(sectionList.getString(j));
        JSONArray columnList=section.getJSONArray("columnList");
        for(int k=0;k<columnList.lenght();k++)
        {
            JSJSONObject column=ws.getJSONObject(columnList.getString(k));
            JSONArray keys = column.names ();
            for (int l = 0; l < keys.length (); l++) {
                String key = keys.getString (l); // Here's your key
                JSJSONObject c1_c2_c3=column.getJSONObject(key);//c1_c2_c3 indicate c1 or c2 or c3
                JSONArray c1_c2_c3Keys = c1_c2_c3.names ();
                for (int m = 0; m < c1_c2_c3Keys.length (); m++) {
                    String c1_c2_c3key = c1_c2_c3Keys.getString (m); // Here's your key i.e. c1_header,c1_datatype,c2_header
                    String header_datatype=c1_c2_c3.getString(c1_c2_c3key);//header_datatype indicate header or datatype i.e. EMP ID ,Numeric
                }
            }
         }
    }
}

希望这会对你有所帮助。

如何在java中读取具有不同数量对象的json键

1 个答案: