无法从 java 连接到 MySQL 数据库,但可以从普通 MySQL 命令行连接

Can't connect to MySQL database from java but able to connect from plain MySQL command line

我正在尝试使用 mwdumper jar 将维基词典转储导入我使用 MAMP Pro 创建的数据库。这是我正在努力的命令:

java -jar mwdumper-1.25.jar --format=sql:1.5 /Users/med/Downloads/enwiktionary-20171001-pages-articles-multistream.xml --output=mysql://localhost:8889/wiktionay?user=wikiuser&password=wiki2017

运行 带有此命令的 jar 提供以下内容:

> [1] 1209
$ Exception in thread "main" java.io.IOException: Access denied for user 'wikiuser'@'localhost' (using password: NO)
        at org.mediawiki.dumper.Dumper.connectMySql(Dumper.java:225)
        at org.mediawiki.dumper.Dumper.openOutputFile(Dumper.java:211)
        at org.mediawiki.dumper.Dumper.main(Dumper.java:96)
Caused by: java.sql.SQLException: Access denied for user 'wikiuser'@'localhost' (using password: NO)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4074)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4006)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:919)
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1694)
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1244)
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2397)
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2430)
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2215)
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:813)
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:334)
        at java.sql.DriverManager.getConnection(DriverManager.java:664)
        at java.sql.DriverManager.getConnection(DriverManager.java:270)
        at org.mediawiki.dumper.Dumper.connectMySql(Dumper.java:221)
        ... 2 more

当我简单地尝试从终端连接到数据库时,我没有访问问题:

$ /Applications/MAMP/Library/bin/mysql -u wikiuser -p

如相关问题所述,我从 MAMP 界面检查了 "Allow network access to MySQL",但仍然没有帮助。使用 root 也有同样的问题。

知道哪里出了问题吗?

问题是由于 & 运算符 密码 在 URL 中作为单独的命令在发送 URL 在终端上。因此,mysql 永远不会得到 密码

使用\转义&

--output=mysql://localhost:8889/wiktionay?user=wikiuser\&password=wiki2017

编辑:04:14 上午,IST

Exception in thread "main" java.lang.IllegalArgumentException: Expected file stream, got SQL connection?

尝试在末尾传递流文件名,即在 --output 之后是 --format 然后是 /Users/med/Downloads/enwiktionary-20171001-pages-articles-multistream.xml