[英]parse json structure from excel sheet into java
i have a data in excel sheet that i need to read in java, i am able to read normal content but not able to read the json structure that i have stored. 我在Excel工作表中有一个需要在Java中读取的数据,我能够读取常规内容,但无法读取我已存储的json结构。 how can i parse json from excel to java?
如何将json从Excel解析为Java?
public class JavaApplication1 {
public static void main(String[] args) {
try {
for (int i=0;i<5;i++)
{
FileInputStream fileInputStream = new FileInputStream("C://users/user/Desktop/C.xls");
HSSFWorkbook workbook = new HSSFWorkbook(fileInputStream);
HSSFSheet worksheet = workbook.getSheet("POI Worksheet");
HSSFRow row1 = worksheet.getRow(0);
HSSFCell cellC1 = row1.getCell((short) 2);
String c1Val = cellC1.getStringCellValue();
HSSFCell cellD1 = row1.getCell((short) 3);
double d1Val = cellD1.getNumericCellValue();
HSSFCell cellE1 = row1.getCell((short) 4);
String e1Val = cellE1.getStringCellValue();
System.out.println("C1: " + c1Val);
System.out.println("D1: " + d1Val);
System.out.println("E1: " + e1Val);
JSONObject obj = new JSONObject();
obj.put("name", new c1Val);
System.out.print(obj);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
my excel sheet contains the following json: 我的Excel工作表包含以下json:
A B C D E
1 rap {"type":"int", "minimum":15, "maximum":58} 240 delhi
this data needs to be read, from column ci need to read a single variable from 15 to 58.. how can i do this? 此数据需要读取,从ci列需要读取15到58之间的单个变量。我该怎么做?
You can parse JSON into Java object in one line like this, 您可以像这样将JSON解析为Java对象,
http://wiki.fasterxml.com/JacksonInFiveMinutes http://wiki.fasterxml.com/JacksonInFiveMinutes
if your Json String value in c1Val
then your json code will be like this. 如果您在
c1Val
Json String值,那么您的json代码将像这样。
Map<String,Object> c_data = mapper.readValue(c1Val, Map.class);
String minimum = c_data.get("minimum");
String maximum= c_data.get("maximum");
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