我最近切换到intellij,但我发现很难连接到我的localDB.相同的代码适用于eclipse.此外,我已经添加了sqljdbc42.jar作为模块依赖项.
package com.enter;import java.sql.*;public class SqlConnect { private String username, password, url; public Connection conn; public SqlConnect() { username = "user=admin;"; password = "password=admin"; url = "jdbc:sqlserver://Bossman-PC\\SQL2014TRAINING;databaseName=EnterDB;"; Connect(); } public SqlConnect(String user, String pass) { username = user; password = pass; url = "jdbc:sqlserver://Bossman-PC\\SQL2014TRAINING;databaseName=EnterDB;"; Connect(); } public void Connect() { //Loads sql driver and creates a connection object with local database try { Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); String connectionUrl = url username password; conn = DriverManager.getConnection(connectionUrl); System.out.println("Connected."); } catch(Exception e) { e.printStackTrace(); } } public Connection getConnection() { return conn; }}
出错:
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/DatatypeConverterat com.microsoft.sqlserver.jdbc.SQLServerConnection.sendLogon(SQLServerConnection.java:4098)at com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(SQLServerConnection.java:3160)at com.microsoft.sqlserver.jdbc.SQLServerConnection.access$100(SQLServerConnection.java:43)at com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecute(SQLServerConnection.java:3123)at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:7505)at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:2445)at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1981)at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:1628)at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectInternal(SQLServerConnection.java:1459)at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:773)at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1168)at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:678)at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:252)at com.enter.SqlConnect.Connect(SqlConnect.java:25)at com.enter.SqlConnect.<init>(SqlConnect.java:12)at com.enter.Login.makeConnection(Login.java:26)at com.enter.Login.<init>(Login.java:16)at com.enter.Execute.initLogin(Execute.java:14)at com.enter.Execute.main(Execute.java:9)Caused by: java.lang.ClassNotFoundException: javax.xml.bind.DatatypeConverter at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)... 19 moreProcess finished with exit code 1
任何帮助将不胜感激.我也尝试过重载的DriverManager.getConnection(url,user,pass)方法和同样的错误.
解决方法:
正如微软在GitHub所述:
Currently none of our driver released Jars are compatible with JDK9.
您可以切换到使用Java 8 JDK,也可以将Microsoft的开发代码从他们的’JDBC4.3’分支合并到您的项目中,并将其与Java 9 JDK一起使用.
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