将值插入 mysql 表所需的帮助
我已经使用 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)
);
在 cmd 中创建了一个表。
在 Eclipse 中,我编写了使用表的准备语句插入值的代码。由于 ID 是自动增量,因此我没有将其包含在插入语句中。
String Query =
"INSERT INTO JobCard (JobNo, RegNo, Service_Type, Customer_Complaints)
VALUES (?,?,?,?)";
但输出显示:
java.sql.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)
任何人都可以告诉我如何传递参数列表吗?请帮我解决这个错误!!
更新:
这是我的代码: 方法调用为:
System.out.println(strLine);
String[] dbColumnValues = strLine.split("%");
Connect.DoInsertIntoDB(Long.parseLong(dbColumnValues[0]),dbColumnValues[1],dbColumnValues[2], dbColumnValues[3]);
方法定义:
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();
}
}
}
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.sql.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();
}
}
}
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评论(4)
需要读取您的堆栈跟踪。在您的代码(Connect.java 的第 40 行)中,您试图将一个值设置为第 5 个?但你准备好的声明中只有 4 个 ? 。
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.
设置参数的时候是从2开始的,必须是1。
如果你看到,最后一个参数是索引 5,而你没有 5° 参数,
因为这个java说异常“参数索引超出范围”。
你必须从 1 开始。
PS:抱歉我的英语不好。
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.
准备语句参数从1个数字开始,根据您的代码参数应该是1到4
但你最终得到了 5。
导致参数索引超出范围
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
你的尝试应该是这样的,
这应该可以解决问题......
Your try should look like this,
and that should solve the problem....