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Help needed for inserting values to a mysql table

开发者 https://www.devze.com 2023-02-23 10:44 出处:网络
I have created a table using mysql: CREATE TABLE JobCard ( ID INT NOT NULL AUTO_INCREMENT PRIMARY KEY, JobNo Long,

I have created a table using mysql:

CREATE TABLE JobCard (
    ID INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
    JobNo Long,
    RegNo VARCHAR(20),
    Service_Type VARCHAR(20),
    Customer_Complaints VARCHAR(100)
);

in cmd.

From Eclipse, i coded for inserting the values using prepared Statement for the table. Since ID is a auto_increment, i didn't include it in the insert statement.

String Query =
    "INSERT INTO JobCard (JobNo, RegNo, Service_Type, Customer_Complaints)
        VALUES (?,?,?,?)";

But the output shows me :

java.sq开发者_开发百科l.SQLException: Parameter index out of range
               (5 > number of parameters, which is 4).
    at
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
    at
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982)
    at
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
    at
com.mysql.jdbc.PreparedStatement.checkBounds(PreparedStatement.java:3717)
    at
com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3701)
    at
com.mysql.jdbc.PreparedStatement.setString(PreparedStatement.java:4552)
    at
example.Connect.DoInsertIntoDB(Connect.java:40)

Can anyone please tell me how to pass the parameter list? Please help me resolve this error!!

Update:

Here is my code: The method call is:

System.out.println(strLine);
                    
String[] dbColumnValues = strLine.split("%");
Connect.DoInsertIntoDB(Long.parseLong(dbColumnValues[0]),dbColumnValues[1],dbColumnValues[2], dbColumnValues[3]);

The method definition:

public static void DoInsertIntoDB(Long JobNo, String RegNo, String Service_Type, String Customer_Complaints){
    
    
    String Query = "INSERT INTO JobCard (JobNo, RegNo, Service_Type, Customer_Complaints) VALUES (?,?,?,?)";
    try {
        Connection conn = toConnect();
                        
        PreparedStatement pstmt = conn.prepareStatement(Query);
        
        pstmt.setLong(2, JobNo);
        pstmt.setString(3, RegNo);
        pstmt.setString(4, Service_Type);
        pstmt.setString(5, Customer_Complaints);
        
        pstmt.executeUpdate();
        pstmt.close();
        conn.close();
        
    } catch (SQLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}
}


Need to read your stack trace. In your code (on line 40 of Connect.java) you're attempting to set a value into the 5th ? but there are only 4 ?s in your prepared statement.


When you set the parameters, you are starting with 2, and it must be 1. If you see, the last parameter is the index 5, and you don't have a 5° parameter, Because of this java say the exception "Parameter index out of range".

You must start in 1.

PS: Sorry for my english.


Prepare statement parameter begin from 1 number, based on your code the parameter should be 1 to 4 but you ended with 5. it cause parameter index out of range


Your try should look like this,

try {
    Connection conn = toConnect();

    PreparedStatement pstmt = conn.prepareStatement(Query);

    pstmt.setLong(1, JobNo);
    pstmt.setString(2, RegNo);
    pstmt.setString(3, Service_Type);
    pstmt.setString(3, Customer_Complaints);

    pstmt.executeUpdate();
    pstmt.close();
    conn.close();

}

and that should solve the problem....

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