ant javascript
场景：怎么在ant中调用javascript
如何在ant中调用javascript
在工作中, 我遇到了这样一个应用场景. 调用ant时传的属性参数中有连接数据库的密码, 在log中会显示出来, 如果将密码加密, 那么又会报数据库端的验证错误, 说不认这个经过加密的密码. 怎么办, 有两种方法, 一个是用java写自定义的ant task来解密传给ant script的密码. 然后用明文密码来连接数据库. 写java的缺点在于每次都要事先编译好这个ant task. 还有一种方法是在ant script写一个javascript task. 当然javascript可以调用java的解密函数, 这样不用每次运行ant script前都编译task. 具体脚本如下:
输出
05/25/12 18:46:55.406 INFO: [ProcessWrapper] Executing: D:\build\fabric\DSEngine\resources\win32\wrappid.exe,D:\build\fabric\DSEngine\work\yangxiaoming-lt-1\antcall.pid,D:/build/fabric/DSEngine/work/yangxiaoming-lt-1/tibcoamx/tibcojre/1.6.0/bin/java,-cp,D:/build/fabric/DSEngine/work/yangxiaoming-lt-1/tibcoamx/tools/lib/antpackage.jar,org.apache.tools.ant.launch.Launcher,-f,D:\build\fabric\DSEngine\work\yangxiaoming-lt-1\scripts\cleanupDDL\cleanupDB.xml,-Dadmin.db.password=#!Panbl6s1FhkBUM70G9T+okR+fv5Nwoq+fYUx+SLzZi8=,-Dadmin.db.url=jdbc:sqlserver://192.168.71.99:1433;databasename=amxdb,-Dadmin.db.username=sa,-Ddb.ddl.path=mssql300,-Ddb.driver.path=D:\build\fabric\DSEngine\work\yangxiaoming-lt-1/fabric/mssql2008_driver,-Dtibco.home=D:/build/fabric/DSEngine/work/yangxiaoming-lt-1/tibcoamx,-Dadmin.db.driver=com.microsoft.sqlserver.jdbc.SQLServerDriver,cleanup.db.logging,
05/25/12 18:46:55.609 INFO: [ProcessWrapper] [STDOUT] Buildfile: D:\build\fabric\DSEngine\work\yangxiaoming-lt-1\scripts\cleanupDDL\cleanupDB.xml
05/25/12 18:46:55.875 INFO: [ProcessWrapper] [STDOUT]
05/25/12 18:46:55.875 INFO: [ProcessWrapper] [STDOUT] replace.db.password:
05/25/12 18:46:55.984 INFO: [ProcessWrapper] [STDOUT] [script] log4j:WARN No appenders could be found for logger (com.tibco.security.TIBCOSecurity).
05/25/12 18:46:55.984 INFO: [ProcessWrapper] [STDOUT] [script] log4j:WARN Please initialize the log4j system properly.
05/25/12 18:46:56.500 INFO: [ProcessWrapper] [STDOUT] [echo] Tibc02008
05/25/12 18:46:56.500 INFO: [ProcessWrapper] [STDOUT]
05/25/12 18:46:56.500 INFO: [ProcessWrapper] [STDOUT] cleanup.db.logging:
05/25/12 18:46:56.687 INFO: [ProcessWrapper] [STDOUT] [sql] Executing resource: D:\build\fabric\DSEngine\work\yangxiaoming-lt-1\scripts\cleanupDDL\mssql300\drop_commonlogging.ddl
05/25/12 18:46:56.687 INFO: [ProcessWrapper] [STDOUT] [sql] 0 rows affected
05/25/12 18:46:56.687 INFO: [ProcessWrapper] [STDOUT] [sql] 1 of 1 SQL statements executed successfully
05/25/12 18:46:56.703 INFO: [ProcessWrapper] [STDOUT]
05/25/12 18:46:56.703 INFO: [ProcessWrapper] [STDOUT] BUILD SUCCESSFUL
05/25/12 18:46:56.703 INFO: [ProcessWrapper] [STDOUT] Total time: 1 second
在ant中使用javascript, 在javascript又调用了java, 所以一定要注意数据的boxing和unboxing. 比如用java的方法返回decryptedPassword 时, 它其实已经被unboxing了, 失去了java的char[]类型, 但内在传递的值是不变的, 所以我们需要对它重新boxing, 让它成为java的String类型, 在boxing他的char[]值同时解码, 获得实际字符串, 也就是明文. 再将它传递给javascript的变量.
具体可以参考下这篇文章:
https://developer.mozilla.org/zh_tw/Core_JavaScript_1.5_%E6%95%99%E5%AD%B8/LiveConnect_%E6%A6%82%E8%A6%81/%E8%B3%87%E6%96%99%E9%A1%9E%E5%9E%8B%E7%9A%84%E8%BD%89%E6%8F%9B/%E5%BE%9E_JavaScript_%E5%88%B0_Java_%E7%9A%84%E8%BD%89%E6%8F%9B
补充:
To do more interesting things with Ant, you have access to properties, targets, and references. For an explanation of properties, targets, and references, refer to the ant manual
project.getProperty(string propertyName);
project.getUserProperty(string propertyName);
project.getTarget(string targetId);
project.getReference(string refereceId);
project is a shortcut for getProject(), which returns the project object.
self returns the script task itself for logging and other task specific utilities.
如何在ant中调用javascript
在工作中, 我遇到了这样一个应用场景. 调用ant时传的属性参数中有连接数据库的密码, 在log中会显示出来, 如果将密码加密, 那么又会报数据库端的验证错误, 说不认这个经过加密的密码. 怎么办, 有两种方法, 一个是用java写自定义的ant task来解密传给ant script的密码. 然后用明文密码来连接数据库. 写java的缺点在于每次都要事先编译好这个ant task. 还有一种方法是在ant script写一个javascript task. 当然javascript可以调用java的解密函数, 这样不用每次运行ant script前都编译task. 具体脚本如下:
<project name="sfamx.cleanupdb" default="cleanup.db.logging">
<dirname property="sfamx.ddl.dir" file="${ant.file.sfamx.ddl.build}"/>
<target name="cleanupall" depends="replace.db.password, cleanup.db.logging"/>
<path id="jdbc.classpath">
<fileset dir="${db.driver.path}" includes="*.jar"/>
</path>
<property name="plaintext.password" value="${plainText}"/>
<target name="replace.db.password">
<script language="javascript">
<classpath>
<!-- for xxx 3.2 -->
<pathelement location="${tibco.home}/components/shared/1.0.0/plugins/com.tibco.security.tibcrypt_2.15.0.009.jar"/>
<pathelement location="${tibco.home}/components/shared/1.0.0/plugins/com.tibco.tpcl.org.slf4j.log4j12_1.6.200.001/slf4j-log4j12-1.5.2.jar"/>
<pathelement location="${tibco.home}/components/shared/1.0.0/plugins/com.tibco.tpcl.org.slf4j.log4j12_1.6.200.001/slf4j-api-1.5.2.jar"/>
<pathelement location="${tibco.home}/components/shared/1.0.0/plugins/com.tibco.tpcl.org.apache.log4j_1.2.400.002/log4j-1.2.15.jar"/>
<!-- for xxx 3.1.5 -->
<pathelement location="${tibco.home}/components/shared/1.0.0/plugins/com.tibco.security.tibcrypt_2.14.300.006.jar"/>
<pathelement location="${tibco.home}/components/shared/1.0.0/plugins/com.tibco.tpcl.org.slf4j.log4j12_1.5.101.001/slf4j-log4j12-1.5.2.jar"/>
<pathelement location="${tibco.home}/components/shared/1.0.0/plugins/com.tibco.tpcl.org.slf4j.log4j12_1.5.101.001/slf4j-api-1.5.2.jar"/>
<pathelement location="${tibco.home}/components/shared/1.0.0/plugins/com.tibco.tpcl.org.apache.log4j_1.2.300.004/log4j-1.2.15.jar"/>
</classpath>
<![CDATA[
importPackage(com.tibco.security);
var encryptedPassword = project.getProperty("admin.db.password");
var decryptedPassword = ObfuscationEngine.decrypt(encryptedPassword);
var plainText = new java.lang.String(decryptedPassword);
project.setProperty("plaintext.password", plainText)
]]>
</script>
</target>
<target name="cleanup.db.logging" depends="replace.db.password"
description="Run ddl to cleanup commonlogging tables in external database for amx administrator">
<sql
driver="${admin.db.driver}"
url="${admin.db.url}"
userid="${admin.db.username}"
password="${plaintext.password}"
print="yes">
<classpath refid="jdbc.classpath"/>
<transaction src="./${db.ddl.path}/drop_commonlogging.ddl"/>
</sql>
</target>
</project>
输出
05/25/12 18:46:55.406 INFO: [ProcessWrapper] Executing: D:\build\fabric\DSEngine\resources\win32\wrappid.exe,D:\build\fabric\DSEngine\work\yangxiaoming-lt-1\antcall.pid,D:/build/fabric/DSEngine/work/yangxiaoming-lt-1/tibcoamx/tibcojre/1.6.0/bin/java,-cp,D:/build/fabric/DSEngine/work/yangxiaoming-lt-1/tibcoamx/tools/lib/antpackage.jar,org.apache.tools.ant.launch.Launcher,-f,D:\build\fabric\DSEngine\work\yangxiaoming-lt-1\scripts\cleanupDDL\cleanupDB.xml,-Dadmin.db.password=#!Panbl6s1FhkBUM70G9T+okR+fv5Nwoq+fYUx+SLzZi8=,-Dadmin.db.url=jdbc:sqlserver://192.168.71.99:1433;databasename=amxdb,-Dadmin.db.username=sa,-Ddb.ddl.path=mssql300,-Ddb.driver.path=D:\build\fabric\DSEngine\work\yangxiaoming-lt-1/fabric/mssql2008_driver,-Dtibco.home=D:/build/fabric/DSEngine/work/yangxiaoming-lt-1/tibcoamx,-Dadmin.db.driver=com.microsoft.sqlserver.jdbc.SQLServerDriver,cleanup.db.logging,
05/25/12 18:46:55.609 INFO: [ProcessWrapper] [STDOUT] Buildfile: D:\build\fabric\DSEngine\work\yangxiaoming-lt-1\scripts\cleanupDDL\cleanupDB.xml
05/25/12 18:46:55.875 INFO: [ProcessWrapper] [STDOUT]
05/25/12 18:46:55.875 INFO: [ProcessWrapper] [STDOUT] replace.db.password:
05/25/12 18:46:55.984 INFO: [ProcessWrapper] [STDOUT] [script] log4j:WARN No appenders could be found for logger (com.tibco.security.TIBCOSecurity).
05/25/12 18:46:55.984 INFO: [ProcessWrapper] [STDOUT] [script] log4j:WARN Please initialize the log4j system properly.
05/25/12 18:46:56.500 INFO: [ProcessWrapper] [STDOUT] [echo] Tibc02008
05/25/12 18:46:56.500 INFO: [ProcessWrapper] [STDOUT]
05/25/12 18:46:56.500 INFO: [ProcessWrapper] [STDOUT] cleanup.db.logging:
05/25/12 18:46:56.687 INFO: [ProcessWrapper] [STDOUT] [sql] Executing resource: D:\build\fabric\DSEngine\work\yangxiaoming-lt-1\scripts\cleanupDDL\mssql300\drop_commonlogging.ddl
05/25/12 18:46:56.687 INFO: [ProcessWrapper] [STDOUT] [sql] 0 rows affected
05/25/12 18:46:56.687 INFO: [ProcessWrapper] [STDOUT] [sql] 1 of 1 SQL statements executed successfully
05/25/12 18:46:56.703 INFO: [ProcessWrapper] [STDOUT]
05/25/12 18:46:56.703 INFO: [ProcessWrapper] [STDOUT] BUILD SUCCESSFUL
05/25/12 18:46:56.703 INFO: [ProcessWrapper] [STDOUT] Total time: 1 second
在ant中使用javascript, 在javascript又调用了java, 所以一定要注意数据的boxing和unboxing. 比如用java的方法返回decryptedPassword 时, 它其实已经被unboxing了, 失去了java的char[]类型, 但内在传递的值是不变的, 所以我们需要对它重新boxing, 让它成为java的String类型, 在boxing他的char[]值同时解码, 获得实际字符串, 也就是明文. 再将它传递给javascript的变量.
具体可以参考下这篇文章:
https://developer.mozilla.org/zh_tw/Core_JavaScript_1.5_%E6%95%99%E5%AD%B8/LiveConnect_%E6%A6%82%E8%A6%81/%E8%B3%87%E6%96%99%E9%A1%9E%E5%9E%8B%E7%9A%84%E8%BD%89%E6%8F%9B/%E5%BE%9E_JavaScript_%E5%88%B0_Java_%E7%9A%84%E8%BD%89%E6%8F%9B
补充:
To do more interesting things with Ant, you have access to properties, targets, and references. For an explanation of properties, targets, and references, refer to the ant manual
project.getProperty(string propertyName);
project.getUserProperty(string propertyName);
project.getTarget(string targetId);
project.getReference(string refereceId);
project is a shortcut for getProject(), which returns the project object.
self returns the script task itself for logging and other task specific utilities.