问题描述
如果我运行主类,则会收到此错误:
If I run my main class, I get this error:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: 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 into customerLogin(companyName,username,password) values('Big Company','D' at line 1
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1054)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4187)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4119)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2570)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2731)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2815)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2458)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2375)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2359)
at dao.CustomerContactDAO.performUpdate(CustomerContactDAO.java:175)
at dao.DAOTemplate.executeUpdate(DAOTemplate.java:27)
at dao.CustomerContactDAO.addCustomerContact(CustomerContactDAO.java:88)
at test.Test.main(Test.java:29)
这是我DAO中的代码.我认为错误出在这些代码行中,但我不知道它是哪一行:
This is the code in my DAO. I think the error is in these lines of code but I don't know which one it is:
public boolean addCustomerContact(CustomerContact c) {
setQuery("insert into customerContact(companyName,lastName,firstName,email,telNum,local,cellNum) values(?,?,?,?,?,?,?);"
+ "insert into customerLogin(companyName,username,password) values(?,?,?)");
queries.add(getQuery());
KeyValuePair onePair;
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.STRING);
onePair.setValue(c.getCompanyName());
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.STRING);
onePair.setValue(c.getLastName());
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.STRING);
onePair.setValue(c.getFirstName());
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.STRING);
onePair.setValue(c.getEmail());
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.INT);
onePair.setValue(c.getTelNum() + "");
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.INT);
onePair.setValue(c.getLocal() + "");
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.STRING);
onePair.setValue(c.getCellNum() + "");
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.STRING);
onePair.setValue(c.getCompanyName());
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.STRING);
onePair.setValue(c.getUsername());
getParameters().add(onePair);
onePair = new KeyValuePair();
onePair.setKey(KeyValuePair.STRING);
onePair.setValue(c.getPassword());
getParameters().add(onePair);
return executeUpdate();
}
推荐答案
您正试图一次执行两个查询. JDBC不允许这样做.单个执行应该是一个且只有一个语句.有些驱动程序确实允许它,但是您需要使用连接属性来启用它,例如对于MySQL,它是allowMultiQueries
,请参见 http://dev.mysql.com/doc/refman/5.6/en/connector-j-reference-configuration-properties.html :
You are trying to execute two queries in one execution. That is not allowed by JDBC. A single execution should be one and only one statement. Some drivers do allow it, but then you need to enable that with a connection property, for example for MySQL it is allowMultiQueries
, see http://dev.mysql.com/doc/refman/5.6/en/connector-j-reference-configuration-properties.html:
但是,我强烈建议作为两个单独的语句执行(可选地在事务中执行).那是JDBC兼容的,并且可以在所有数据库上使用.
However I'd strongly suggest to execute as two separate statements (optionally in a transaction). That is JDBC compliant and will work on all databases.
这篇关于com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:SQL语法错误的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!