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Closed 4 years ago.
4 years agojava.sql.SQLSyntaxErrorException: ORA-01722: Invalid numeric value. error.I wanted to create a system to load the CSV file and fill in the database, and I got the above error on the way.
CSV Write Controller
protected void doPost(HttpServletRequest request, HttpServletResponse response)throwsServletException, IOException {
// TODO Auto-generated method stub
CSVReader csvReading;
String fileName;
T001ItemDao;
String nextPage="";
String name = request.getParameter("name");
String code = request.getParameter("code");
// // Get Amount
String unitPrice=request.getParameter("unitPrice");
// acquisition of quantities
String count = request.getParameter("count");
String isPR = request.getParameter("isPR");
String img = request.getParameter("image");
ServletContext con=getServletConfig().getServletContext();
csvReading = new CSVReader();
csvReading.csvAdd (request, con);
List<List<String>>csvResult=csvReading.read();
for(inti=4;i<csvResult.size();i++){
if(null!=csvResult.get(i)){
for(int j=0;j<csvResult.get(i).size();j++){
System.out.println("csvResult" + csvResult.get(i).get(j));
if(0==(i%4)){
try{
itemDao = new T001 ItemDao();
itembean = itemDao.update(code, name, unitPrice, count);
request.setAttribute("itembean", itembean);
nextPage="/list.jsp";
} catch(ClassNotFoundExceptione){
// TODO Auto-Generated Catch Blocks
e.printStackTrace();
} catch(SQLExceptione){
// TODO Auto-Generated Catch Blocks
e.printStackTrace();
}
} else {
try{
itemDao = new T001 ItemDao();
int result = itemDao.addItem(name, unitPrice, count, isPR, img);
if(result==1){
nextPage="/list.jsp";
} else{
nextPage="/add.jsp";
}
} catch(ClassNotFoundExceptione){
// TODO Auto-Generated Catch Blocks
e.printStackTrace();
} catch(SQLExceptione){
// TODO Auto-Generated Catch Blocks
e.printStackTrace();
}
}
}
}
}
System.out.println("csvResult"+csvResult);
}
write to the CSV write class
public List<List<String>>read(){
// Create Return List Box
List<List<String>>ret=new ArrayList<List>String>>();
if(fileName!=null){
System.out.println("fileName" + fileName);
String inputCsvFile="C:\\pleiades\\workspace\\hasuike\\jspServlet\\WebContent\\csv\\test1.csv";
File csv = new File (inputCsvFile);
System.out.println(csv);
BufferedReader br=null;
try{
intlineCount = 0;
// file opening
br = new BufferedReader (new FileReader(csv));
// Load num lines (all lines if 0)
String line="";
int idx = 0;
while((line=br.readLine())!=null){
lineCount++;
// Create a box containing a single line
List<String>tmpList=new ArrayList<String>();
// string index
int idxFrom = 0;
int idxTo = 0;
// string length
while(true){
// Finished after last item is retrieved
if(idxFrom>line.length()){
break;
}
// Obtain the next separator position
idxTo=line.indexOf(", ", idxFrom);
// Get last item if separator is not found
if(idxTo==-1){
idxTo=line.length();
}
// string acquisition
String word = line.substring(idxFrom,idxTo);
// Storing a String
tmpList.add(word);
// Update Search Start Location
idxFrom = idxTo+1;
}
// Store one line of data in return list
ret.add(tmpList);
// Load finished when num is exceeded.If num is 0, read the whole amount.
if(lineCount!=0&idx>lineCount){
break;
}
}
} catch(FileNotFoundExceptione){
e.printStackTrace();
} catch(IOExceptione){
e.printStackTrace();
} US>finally
try{
if(br!=null){
br.close();
}
} catch(IOExceptione){
e.printStackTrace();
}
}
}
return;
}
I wrote.When I looked into the contents of the error, I found out that it was an error that occurred when the type conversion failed.
The first element of the array may be empty, for example, [,stabba, 400, 40, 1], [518, green, 444, 35, 0]], and so on.
I wonder if that caused an error, but I don't know how to fix it...
(It may not be that part in the first place)
How can I fix it?
java jsp servlet
If there is an error, you should paste the error log.
Also, it is better to show the data you read.
If the number is invalid or empty in the array, it may be an empty String character when you read the empty text, and you are trying to insert it directly into the database, resulting in a type conversion error.
Check the table definition.
For non-empty cases, implicit type conversion is probably working.
どうやって直せば・・・については、ファイルを読み込んだときに空文字を変換するか、DBにINSERTするときに空文字を変換するか、くらいかと思います。
If it means, < code > / character string acquisition or something a blank character decision to the, if the school after < / code > I say from the displayed code for something you are to make of the letter, but Specifically I'm not sure how much we don't follow that all of the processing. < / >
"By the way, I get the impression that ""CSV write"" means writing data to a CSV file, but I think it means writing a CSV file to a DB."
Please include an error message.
java.sql.SQLSyntaxErrorException: ORA-01722: Invalid number
occurs when an internal type conversion to an Oracle character type → numeric type fails.
Type conversion fails if the string to be converted contains characters other than numbers, decimal places, and non-signs.
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