java - delete data from db with spaces in jsp -


this question has answer here:


unable delete data, db(mysql), spaces example:
"blabla blabla" or " blabla", data without spaces deleting: "blablabla"

here how value in jsp:

<a href=deletedata?id=<%= rs.getstring(1)></a> 

and deletedata - servlet

import javax.servlet.servletexception; import javax.servlet.annotation.webservlet; import javax.servlet.http.httpservlet; import javax.servlet.http.httpservletrequest; import javax.servlet.http.httpservletresponse; import java.io.ioexception; import java.sql.connection; import java.sql.drivermanager; import java.sql.statement;  @webservlet("/deletedata") public class deletedata extends httpservlet {  protected void doget(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception {      string value = request.getparameter("id");       try {         class.forname("com.mysql.jdbc.driver");         connection conn = drivermanager.getconnection("jdbc:mysql://localhost:3306/evernotedb",                 "evernotedb", "0633739768z");           statement st = conn.createstatement();          st.executeupdate("delete note notename='" + value  + "'");          response.sendredirect("/usernotes.jsp");          conn.close();     } catch (exception e) {         e.printstacktrace();     } } 

} think problem in - getstring function, on oracle website mentioned function getting rows, disappointed

you redirecting in href , spaces in url translated %20 that's why when pass "blabla blabla" delete not matching results. should sanitize value.

uggly fast way:

replace %20 empty string

right way:java: how unescape html character entities in java?


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