Java 使用JDBC时发生SQL错误
我正在尝试获取一个表单，将信息写入MySQL数据库。servlet正在连接到确认jsp，但数据库没有记录信息。我收到以下错误消息：Java 使用JDBC时发生SQL错误,java,database,jsp,servlets,jdbc,Java,Database,Jsp,Servlets,Jdbc,我正在尝试获取一个表单，将信息写入MySQL数据库。servlet正在连接到确认jsp，但数据库没有记录信息。我收到以下错误消息： SEVERE: java.sql.SQLException: No value specified for parameter 11 at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075) at com.mysql.jdbc.SQLError.createSQLException(SQLEr
SEVERE: java.sql.SQLException: No value specified for parameter 11
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929)
at com.mysql.jdbc.PreparedStatement.checkAllParametersSet(PreparedStatement.java:2560)
at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:2536)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2383)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2327)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2312)
at com.sun.gjc.spi.base.PreparedStatementWrapper.executeUpdate(PreparedStatementWrapper.java:125)
at eBooks.data.UserDB.update(UserDB.java:100)
at eBooks.controller.RegisterUserServlet.doPost(RegisterUserServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
SEVERE: at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075)
SEVERE: at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
SEVERE: at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
SEVERE: at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929)
SEVERE: at com.mysql.jdbc.PreparedStatement.checkAllParametersSet(PreparedStatement.java:2560)
SEVERE: at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:2536)
SEVERE: at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2383)
SEVERE: at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2327)
SEVERE: at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2312)
SEVERE: at com.sun.gjc.spi.base.PreparedStatementWrapper.executeUpdate(PreparedStatementWrapper.java:125)
SEVERE: at eBooks.data.UserDB.update(UserDB.java:100)
SEVERE: at eBooks.controller.RegisterUserServlet.doPost(RegisterUserServlet.java:65)
SEVERE: at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
SEVERE: at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
package eBooks.data;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import eBooks.business.User;
import eBooks.util.DBUtil;
/**
* @author L10
*/
public class UserDB {
public static int insert(User user)
{
ConnectionPool pool = ConnectionPool.getInstance();
Connection connection = pool.getConnection();
PreparedStatement ps = null;
String query =
"INSERT INTO User (fName, lName, email_address, password, dataOfBirth, phone,"
+ " address, city, state, country, zipcode, accountType)"
+ "VALUES (?,?,?,?,?,?,?,?,?,?,?)";
try
{
ps = connection.prepareStatement(query);
ps.setString(1, user.getfName());
ps.setString(2, user.getlName());
ps.setString(3, user.getEmailAddress());
ps.setString(4, user.getPassword());
ps.setString(5, user.getDateOfBirth());
ps.setString(5, user.getPhone());
ps.setString(6, user.getAddress());
ps.setString(7, user.getCity());
ps.setString(8, user.getCountry());
ps.setString(9, user.getState());
ps.setString(10, user.getZipcode());
//ps.setString(11, user.getAccountType());
return ps.executeUpdate();
}
catch(SQLException e)
{
e.printStackTrace();
return 0;
}
finally
{
DBUtil.closePreparedStatement(ps);
pool.freeConnection(connection);
}
}
public static int update(User user)
{
ConnectionPool pool = ConnectionPool.getInstance();
Connection connection = pool.getConnection();
PreparedStatement ps = null;
String query = "UPDATE User SET"
+ "fName = ?"
+ "lName = ?"
+ "password = ?"
+ "dateOfBirth = ?"
+ "phone = ?"
+ "address = ?"
+ "city = ?"
+ "state_or_Region = ?"
+ "country = ?"
+ "zip = ?"
+ ""
+ "WHERE email_address= ?";
try
{
ps = connection.prepareStatement(query);
ps.setString(1, user.getfName());
ps.setString(2, user.getlName());
ps.setString(3, user.getEmailAddress());
ps.setString(4, user.getPassword());
ps.setString(5, user.getDateOfBirth());
ps.setString(5, user.getPhone());
ps.setString(6, user.getAddress());
ps.setString(7, user.getCity());
ps.setString(8, user.getCountry());
ps.setString(9, user.getState());
ps.setString(10, user.getZipcode());
//ps.setString(11, user.getAccountType());
return ps.executeUpdate();
}
catch(SQLException e)
{
e.printStackTrace();
return 0;
}
finally
{
DBUtil.closePreparedStatement(ps);
pool.freeConnection(connection);
}
}
public static int delete(User user)
{
ConnectionPool pool = ConnectionPool.getInstance();
Connection connection = pool.getConnection();
PreparedStatement ps = null;
String query = "DELETE FROM User" +
"WHERE email_address = ?";
try
{
ps = connection.prepareStatement(query);
ps.setString(1, user.getEmailAddress());
return ps.executeUpdate();
}
catch(SQLException e)
{
e.printStackTrace();
return 0;
}
finally
{
DBUtil.closePreparedStatement(ps);
pool.freeConnection(connection);
}
}
public static boolean emailExists(String emailAddress)
{
ConnectionPool pool = ConnectionPool.getInstance();
Connection connection = pool.getConnection();
PreparedStatement ps = null;
ResultSet rs = null;
String query = "SELECT email_address FROM User"+
"WHERE email_address = ?";
try
{
ps = connection.prepareStatement(query);
ps.setString(1, emailAddress);
rs = ps.executeQuery();
return rs.next();
}
catch(SQLException e)
{
e.printStackTrace();
return false;
}
finally
{
DBUtil.closeResultSet(rs);
DBUtil.closePreparedStatement(ps);
pool.freeConnection(connection);
}
}
public static User selectUser(String emailAddress)
{
ConnectionPool pool = ConnectionPool.getInstance();
Connection connection = pool.getConnection();
PreparedStatement ps = null;
ResultSet rs = null;
String query = "SELECT * FROM User"+
"WHERE email_address = ?";
try
{
ps = connection.prepareStatement(query);
ps.setString(1, emailAddress);
rs = ps.executeQuery();
User user = null;
if (rs.next())
{
user = new User();
user.setfName(rs.getString("fName"));
user.setlName(rs.getString("lName"));
user.setEmailAddress(rs.getString("emailAddress"));
user.setPassword(rs.getString("password"));
user.setPhone(rs.getString("phone"));
user.setDateOfBirth(rs.getString("dateOfBirth"));
user.setAddress(rs.getString("address"));
user.setCity(rs.getString("city"));
user.setCountry(rs.getString("country"));
user.setState(rs.getString("state"));
user.setZipcode(rs.getString("zip"));
// user.setAccountType(rs.getString("accountType")); -- Ask Jassin
}
return user;
}
catch(SQLException e)
{
e.printStackTrace();
return null;
}
finally
{
DBUtil.closeResultSet(rs);
DBUtil.closePreparedStatement(ps);
pool.freeConnection(connection);
}
}
}
我需要一个正确的方向，如果您有任何建议，我将不胜感激。您为什么要评论这句话
//ps.setString(11, user.getAccountType());
您的插入字符串有11个占位符参数，您只需为其输入10。这导致了错误。所以重复使用那一行就可以了。为什么要注释掉这一行
//ps.setString(11, user.getAccountType());
"INSERT INTO User (fName, lName, email_address, password, dataOfBirth, phone,"
+ " address, city, state, country, zipcode, accountType)"
+ "VALUES (?,?,?,?,?,?,?,?,?,?,?)";
"INSERT INTO User (fName, lName, email_address, password, dataOfBirth, phone,"
+ " address, city, state, country, zipcode, accountType)"
+ "VALUES (?,?,?,?,?,?,?,?,?,?,?)";
//ps.setString（11，user.getAccountType（））
您缺少accountType。您可以提供额外的帐户类型吗？在values中并取消注释//ps.setString（11，user.getAccountType（））基于查询
String query =
"INSERT INTO User (fName, lName, email_address, password, dataOfBirth, phone,"
+ " address, city, state, country, zipcode, accountType)"
+ "VALUES (?,?,?,?,?,?,?,?,?,?,?)";
您应该改为使用以下查询，其中参数实际上是12，而不是11
String query =
"INSERT INTO User (fName, lName, email_address, password, dataOfBirth, phone,"
+ " address, city, state, country, zipcode, accountType)"
+ "VALUES (?,?,?,?,?,?,?,?,?,?,?,?)";
而对于设置的参数
ps = connection.prepareStatement(query);
ps.setString(1, user.getfName());
ps.setString(2, user.getlName());
ps.setString(3, user.getEmailAddress());
ps.setString(4, user.getPassword());
// ps.setString(5, user.getDateOfBirth());
// ps.setString(5, user.getPhone());
ps.setString(5, user.getDateOfBirth());
ps.setString(6, user.getPhone());
ps.setString(7, user.getAddress());
ps.setString(8, user.getCity());
ps.setString(9, user.getState());
ps.setString(10, user.getCountry());
ps.setString(11, user.getZipcode());
ps.setString(12, user.getAccountType());
用于更新查询
String query = "UPDATE User SET"
+ "fName = ?"
+ "lName = ?"
+ "password = ?"
+ "dateOfBirth = ?"
+ "phone = ?"
+ "address = ?"
+ "city = ?"
+ "state_or_Region = ?"
+ "country = ?"
+ "zip = ?"
+ ""
+ "WHERE email_address= ?";
您还缺少一个参数
ps.setString(1, user.getfName());
ps.setString(2, user.getlName());
ps.setString(3, user.getPassword());
ps.setString(4, user.getDateOfBirth());
ps.setString(5, user.getPhone());
ps.setString(6, user.getAddress());
ps.setString(7, user.getCity());
ps.setString(8, user.getState());
ps.setString(9, user.getCountry());
ps.setString(10, user.getZipcode());
ps.setString(11, user.getEmailAddress());
基于查询
String query =
"INSERT INTO User (fName, lName, email_address, password, dataOfBirth, phone,"
+ " address, city, state, country, zipcode, accountType)"
+ "VALUES (?,?,?,?,?,?,?,?,?,?,?)";
您应该改为使用以下查询，其中参数实际上是12，而不是11
String query =
"INSERT INTO User (fName, lName, email_address, password, dataOfBirth, phone,"
+ " address, city, state, country, zipcode, accountType)"
+ "VALUES (?,?,?,?,?,?,?,?,?,?,?,?)";
而对于设置的参数
ps = connection.prepareStatement(query);
ps.setString(1, user.getfName());
ps.setString(2, user.getlName());
ps.setString(3, user.getEmailAddress());
ps.setString(4, user.getPassword());
// ps.setString(5, user.getDateOfBirth());
// ps.setString(5, user.getPhone());
ps.setString(5, user.getDateOfBirth());
ps.setString(6, user.getPhone());
ps.setString(7, user.getAddress());
ps.setString(8, user.getCity());
ps.setString(9, user.getState());
ps.setString(10, user.getCountry());
ps.setString(11, user.getZipcode());
ps.setString(12, user.getAccountType());
用于更新查询
String query = "UPDATE User SET"
+ "fName = ?"
+ "lName = ?"
+ "password = ?"
+ "dateOfBirth = ?"
+ "phone = ?"
+ "address = ?"
+ "city = ?"
+ "state_or_Region = ?"
+ "country = ?"
+ "zip = ?"
+ ""
+ "WHERE email_address= ?";
您还缺少一个参数
ps.setString(1, user.getfName());
ps.setString(2, user.getlName());
ps.setString(3, user.getPassword());
ps.setString(4, user.getDateOfBirth());
ps.setString(5, user.getPhone());
ps.setString(6, user.getAddress());
ps.setString(7, user.getCity());
ps.setString(8, user.getState());
ps.setString(9, user.getCountry());
ps.setString(10, user.getZipcode());
ps.setString(11, user.getEmailAddress());
统计参数与实际设置的参数。values语句包含11“”，但在UserDB类中似乎只设置了10个参数。统计参数与实际设置的参数。values语句包含11“”，但在UserDB类中似乎只设置了10个参数。