與多個數據庫連接的飛行路線

Question

我想在多個數據庫的複雜ERP上使用飛橋，但是我沒有找到任何提示使其運行。 我使用一個螞蟻腳本與哈德森一起構建整個系統。 因此，我創建了一個包含以下內容的migrate.xml文件，並在下面的任務中多次調用腳本。 但是，該任務僅運行一次任何錯誤。 如果我兩次調用任務，則會拋出異常。 任何想法來解決這個問題？

在此先感謝。

--exception 
BUILD FAILED 
/home/raphael/Development/ufpb/sig/sig-migration-fly-way/build.xml:6: The following error occurred while executing this line: 
/home/raphael/Development/ufpb/sig/sig-migration-fly-way/migrate.xml:27: Flyway Error: java.lang.IllegalArgumentException: null source 
    at java.util.EventObject.<init>(EventObject.java:38) 
    at org.apache.tools.ant.BuildEvent.<init>(BuildEvent.java:93) 
    at org.apache.tools.ant.Project.fireMessageLogged(Project.java:2351) 
    at org.apache.tools.ant.Project.log(Project.java:492) 
    at com.googlecode.flyway.ant.AntLog.debug(AntLog.java:42) 
    at com.googlecode.flyway.core.dbsupport.DbSupportFactory.createDbSupport(DbSupportFactory.java:59) 
    at com.googlecode.flyway.core.Flyway.execute(Flyway.java:1159) 
    at com.googlecode.flyway.core.Flyway.info(Flyway.java:967) 
    at com.googlecode.flyway.ant.MigrateTask.doExecuteWithMigrationConfig(MigrateTask.java:157) 
    at com.googlecode.flyway.ant.AbstractMigrationLoadingTask.doExecute(AbstractMigrationLoadingTask.java:271) 
    at com.googlecode.flyway.ant.AbstractFlywayTask.execute(AbstractFlywayTask.java:329) 
    at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291) 

--task 
    <target name="test"> 
    <ant antfile="migrate.xml"> 
     <property name="dir" value="sigaa"/> 
     <property name="database" value="demo_development"/> 
    </ant> 
    </target> 

---migrate.xml 
<?xml version="1.0"?> 

<project name="migrations" default="deploy" basedir="." xmlns:flyway="antlib:com.googlecode.flyway.ant"> 

    <path id="flyway.classpath"> 
     <!-- include all jars containing jdbc drivers --> 
     <!-- include all jars and directories containing sql migrations --> 
     <!-- include all jars and directories containing compiled java migrations --> 
     <fileset dir="lib"> 
      <include name="*.jar" /> 
    </fileset>  
    </path> 

    <taskdef uri="antlib:com.googlecode.flyway.ant" 
      resource="com/googlecode/flyway/ant/antlib.xml" /> 

    <property name="flyway.driver" value="org.postgresql.Driver"/> 
    <property name="flyway.initOnMigrate" value="true"/> 
    <property name="flyway.validateOnMigrate" value="true"/> 
    <property name="flyway.url" value="jdbc:postgresql://localhost:5432/${database}"/> 
    <property name="flyway.user" value="***"/> 
    <property name="flyway.password" value="****"/> 
    <property name="flyway.table" value="schema_version_${dir}"/>    
    <property name="flyway.locations" value="filesystem:db/migrations/${dir}"/> 

    <target name="migrate"> 
     <flyway:migrate /> 
    </target> 

    <target name="deploy" depends="migrate"> 
     <flyway:info /> 
    </target>      
</project> 

Answer 1

的問題是在遷徙路線蟻項目的類com.googlecode.flyway.ant.AntLog，因爲org.apache.tools.ant.Project類的日誌方法。在第二次執行時，代碼antProject.getThreadTask（Thread.currentThread（））返回null，併發生錯誤。 我把一個if語句來解決像下面的代碼一樣的問題

if (task != null) 
    antProject.log(task, message, null, Project.MSG_VERBOSE); 
else 
    antProject.log(message, null, Project.MSG_VERBOSE);