将SchemaSpy连接到Linux for Docker Engine上的Microsoft SQL Server失败并显示连接失败

时间:2019-05-16 15:52:40

标签: sql-server docker schemaspy

我正在Microsoft SQL Server on Linux for Docker Engine中本地运行数据库,我可以使用mssql-cli -U username -P password -d dbname成功连接到数据库,但是我正在努力使用SchemaSpy连接到数据库,例如

$ java -jar schemaspy-6.0.0.jar -t mssql -u username -p password -o . -host localhost -port 1433 -db dbname
INFO  - Started Main in 1.183 seconds (JVM running for 1.556)
INFO  - Configuration file not found
INFO  - Starting schema analysis
INFO  - Failed to validate png renderer ':cairo'.  Reverting to default renderer for png.
WARN  - Connection Failure

您知道我该如何解决连接故障吗?

1 个答案:

答案 0 :(得分:1)

我以此启动SQL Server:

docker run --name sqlserver -e 'ACCEPT_EULA=Y' -e 'SA_PASSWORD=BadPassword1' -p 1433:1433 -d mcr.microsoft.com/mssql/server:2017-latest-ubuntu

我会检查您是否为Docker桌面提供了足够的RAM。当我第一次使用配置为<2GB RAM的Docker启动SQL Server时,该容器启动了,但是当我查看日志时,我无法连接:

docker logs sqlserver

(sqlserver是退出的Docker容器的名称)

我看到了:

sqlservr: This program requires a machine with at least 2000 megabytes of memory.
/opt/mssql/bin/sqlservr: This program requires a machine with at least 2000 megabytes of memory.

一旦我将Docker桌面更新为再次具有2GB的RAM(不久前将其降至1GB),它就正常了。

一个启动,我可以使用nmap localhost -p 1433来验证端口是否打开。

然后我通过在正在运行的容器上启动一个交互式外壳程序来检查SQL Server是否正在运行:

docker exec -it --rm sqlserver /bin/bash

在交互式外壳程序内部,我可以使用/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -P BadPassword1访问SQL Server外壳程序。在mssql shell中,您必须键入所需的内容,然后在单独的行上输入GO以执行您输入的所有内容。

因此,要列出数据库:

SELECT name FROM master.sys.databases;
GO

列出表格:

SELECT DISTINCT TABLE_NAME FROM information_schema.TABLES;
GO

然后我创建了一个数据库和一个表来针对以下对象运行SchemaSpy:

CREATE DATABASE SchemaSpyTest;
GO;
USE SchemaSpyTest;
GO;
CREATE TABLE TableTest1(id int);
GO

然后,我运行了您在SchemaSpy上列出的参数,它对我也不起作用。

使用-debug标志后,我发现mssql设置还不够:

org.schemaspy.model.ConnectionFailure: Failed to connect to database URL [jdbc:microsoft:sqlserver://localhost:1433;databaseName=dbname] Failed to create any of 'com.microsoft.sqlserver.jdbc.SQLServerDriver, com.microsoft.jdbc.sqlserver.SQLServerDriver' driver from driverPath 'C:/Program Files/Microsoft SQL Server 2000 Driver for JDBC/lib/msbase.jar;C:/Program Files/Microsoft SQL Server 2000 Driver for JDBC/lib/mssqlserver.jar;C:/Program Files/Microsoft SQL Server 2000 Driver for JDBC/lib/msutil.jar' with sibling jars no.
Resulting in classpath: empty
There were missing paths in driverPath:
        C
        /Program Files/Microsoft SQL Server 2000 Driver for JDBC/lib/msbase.jar;C
        /Program Files/Microsoft SQL Server 2000 Driver for JDBC/lib/mssqlserver.jar;C
        /Program Files/Microsoft SQL Server 2000 Driver for JDBC/lib/msutil.jar
Use commandline option '-dp' to specify driver location.
If you need to load sibling jars used '-loadjars'
        at org.schemaspy.DbDriverLoader.getConnection(DbDriverLoader.java:101)
        at org.schemaspy.DbDriverLoader.getConnection(DbDriverLoader.java:75)
        at org.schemaspy.service.SqlService.connect(SqlService.java:68)
        at org.schemaspy.SchemaAnalyzer.analyze(SchemaAnalyzer.java:186)
        at org.schemaspy.SchemaAnalyzer.analyze(SchemaAnalyzer.java:107)
        at org.schemaspy.cli.SchemaSpyRunner.runAnalyzer(SchemaSpyRunner.java:97)
        at org.schemaspy.cli.SchemaSpyRunner.run(SchemaSpyRunner.java:86)
        at org.schemaspy.Main.main(Main.java:48)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)

因此,我从https://www.microsoft.com/en-us/download/details.aspx?id=57782下载了JDBC驱动程序,并将其与其他脚本保存在同一文件夹中。

然后,我能够根据文档计算出正确的参数组合:

java -jar schemaspy-6.0.0.jar -t mssql05 -u sa -p BadPassword1 -o . -host localhost -port 1433 -db SchemaSpyTest -debug -dp ./sqljdbc_7.2/enu/mssql-jdbc-7.2.2.jre8.jar

dp标志链接到Microsoft SQL Server JDBC驱动程序中的JAR文件。

之后,它运行良好。