`我在为 Java ODBC MySQL 执行PreparedStatement 时遇到问题。它似乎切断了查询,并给出了语法错误。我不知道如何继续,因为我现在只学习 Java SQL。我无法真正做一个独立的示例,因为问题涉及数据库,而且它会变得相当大。
有问题的代码是这样的..
public void insertEntry(
Hashtable<String, String> strings,
Hashtable<String, Integer> integers,
Date created, Date paid, boolean enabled)
throws ClassNotFoundException, SQLException {
Class.forName("com.mysql.jdbc.Driver");
String dburl = "jdbc:mysql://" + dbHost + "/" + dbName +
"?user=" + dbUser + "&password=" + dbPass;
connect = DriverManager.getConnection(dburl);
ps = connect.prepareStatement("INSERT INTO " + dbName + ".users INSERT " +
"enabled=?, username=?, created=?, paid=?, alias=?, password=?, " +
"email=?, bitmessage=?, torchat=?, reputation=?," +
"privacy=?, fpmport=?, fpm-template=? ;");
java.sql.Date SQLcreated = new java.sql.Date(created.getTime());
java.sql.Date SQLpaid = new java.sql.Date(paid.getTime());
System.out.println("Debug: SQLpaid = " + SQLpaid.toString());
ps.setBoolean(1, enabled);
ps.setString(2, strings.get("username"));
ps.setDate(3, SQLcreated);
ps.setDate(4, SQLpaid);
ps.setString(5, strings.get("alias"));
ps.setString(6, strings.get("password"));
ps.setString(7, strings.get("email"));
ps.setString(8, strings.get("bitmessage"));
ps.setString(9, strings.get("torchat"));
ps.setInt(10, integers.get("reputation"));
ps.setInt(11, integers.get("privacy"));
ps.setInt(12, integers.get("fpmport"));
ps.setString(13, strings.get("fpm-template"));
ps.executeUpdate();
ps.close();
connect.close();
resultSet.close();
}
尝试使用此方法时,我得到以下输出...
Debug: SQLpaid = 1990-03-21
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorEx ception: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'INSERT enabled=0, username='default_username', created='2000-03-21', paid='1990-' at line 1
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Construc tor.java:532)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:41 1)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLErro r.java:1054)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:4237)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:4169)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:26 17)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java :2778)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionIm pl.java:2834)
at com.mysql.jdbc.PreparedStatement.executeInternal(P reparedStatement.java:2156)
at com.mysql.jdbc.PreparedStatement.executeUpdate(Pre paredStatement.java:2441)
at com.mysql.jdbc.PreparedStatement.executeUpdate(Pre paredStatement.java:2366)
at com.mysql.jdbc.PreparedStatement.executeUpdate(Pre paredStatement.java:2350)
at database.Users.insertEntry(Users.java:297)
at test.dbUsers.main(dbUsers.java:95)
最佳答案
我认为您在代码中犯了一些错误:
如下:
1。您提到INSERT
,并且您应该像SET
2。在 SQL 查询中添加 ;
后,您应该将其删除。
您的代码:
ps = connect.prepareStatement
("INSERT INTO " + dbName + ".users INSERT " #look here error to change 'set' +
"enabled=?, username=?, created=?, paid=?, alias=?, password=?, " +
"email=?, bitmessage=?, torchat=?, reputation=?," +
"privacy=?, fpmport=?, fpm-template=? ; " #remove this semicolon(;));
您应该进行如下更改:
ps = connect.prepareStatement
("INSERT INTO " + dbName + ".users SET " +
"enabled=?, username=?, created=?, paid=?, alias=?, password=?, " +
"email=?, bitmessage=?, torchat=?, reputation=?," +
"privacy=?, fpmport=?, fpm-template=? ");
关于Java MySQL ODBCPreparedStatement 切断查询,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22551532/