CallableStatament for selection stored procedure

Question

hello,
i write a jsp page where there are inputs. when i click on a button i want to search elements in my sql server database. to do that, i call a stored procedure :
CREATE PROCEDURE PS_ELTS
@param0 VARCHAR(40),
@param1 VARCHAR(10),
@param2 VARCHAR(6),
@param3 VARCHAR(6),
@param4 VARCHAR(40)
AS
SELECT ELTS.NAME,
ELTS.TEL,
ELTS.ADR1,
ELTS.ADR2,
ELTS.SERV
FROM ELTS
WHERE (ELTS.NAME LIKE @param0 OR @param0 IS NULL)
AND (ELTS.TEL LIKE @param1 OR @param1 IS NULL)
AND (ELTS.ADR1 LIKE @param2 OR @param2 IS NULL)
AND (ELTS.ADR2 LIKE @param3 OR @param3 IS NULL)
AND (ELTS.SERV LIKE @param4 OR @param4 IS NULL)
ORDER BY ELTS.NAME, ELTS.TEL
i have a java class elts as business object. in the class, there is a method search which takes an elts event, connects to the database and gets elements which are ok. if all parameters are null, i get every lines of ELTS table. it's ok. if one or more of the parametre is not null, i don't get any line. this is the method :
public void search(UtilBean bean) throws Exception {
int i = 0;
Class.forName(driver);
Connection connection = DriverManager.getConnection(url, login, password);
if (connection != null) {
connectionOk = true;
this.setNAME(beanrecherche.getNAME());
this.setTEL(beanrecherche.getTEL());
this.setADR1(beanrecherche.getADR1());
this.setADR2(beanrecherche.getADR2());
this.setSERV(beanrecherche.getSERV());
String aProc = "{call PS_ELTS(?,?,?,?,?)}";
CallableStatement aStatement = connection.prepareCall(aProc);
aStatement.setString(1, fmt_sqlChaineLike(this.getNAME()));
aStatement.setString(2, fmt_sqlChaineLike(this.getTEL()));
aStatement.setString(3, fmt_sqlChaineLike(this.getADR1()));
aStatement.setString(4, fmt_sqlChaineLike(this.getADR2()));
aStatement.setString(5, fmt_sqlChaineLike(this.getSERV()));
aStatement.execute();
ResultSet rs = aStatement.getResultSet();
while (rs.next()) {
     i++;
UtilBean util = new UtilBean();
util.setNAME(rs.getString("NAME"));
util.setTEL(rs.getString("TEL"));
util.setADR1(rs.getString("ADR1"));
util.setADR2(rs.getString("ADR2"));
util.setSERV(rs.getString("SERV"));
listUtil.add(util);
do i do something wrong ? is there a solution to this problem ?

Answer 1

i found what's wrong. in my stored procedure, i defined parameters like this :
@param0 VARCHAR(40),
@param1 VARCHAR(10),
@param2 VARCHAR(6),
@param3 VARCHAR(6),
@param4 VARCHAR(40)
when i use :
aStatement.setString(1, this.getNAME());
java sends a 40 characters long string to the stored procedure so if i write 'hello', the stored procedure gets 'hello '. any element is like that in the database so i must change the stored procedure :
(ELTS.NAME LIKE @param0 OR @param0 IS NULL) became (ELTS.NAME LIKE rtrim(ltrim(@param0)) OR @param0 IS NULL)