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我是新來的堅持,我做了helloWorld教程,非常令人印象深刻的順便說一句,但我現在試圖連接到一個真正的postgres數據庫,發現自己努力讓司機認識到,當我有它應該的感覺簡單死了。堅持不懈的數據源驅動
我放棄了所有的JDBC驅動程序的Postgres我不得不在持之以恆/ lib文件夾:
- PostgreSQL相關8.3-603.jdbc2ee.jar
- PostgreSQL相關8.3-603.jdbc2.jar
- PostgreSQL相關8.3-603.jdbc3.jar
- PostgreSQL相關8.3-603.jdbc4.jar
然而,當我開始用命令 「persvr」 沒有申辯持之以恆從我的項目文件夾彪我收到以下錯誤信息:
java.lang.ClassNotFoundException: org.postgresql.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:379)
at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:341)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.persvr.datasource.DatabaseDataSource.initParameters(Unknown Source)
at org.persvr.datasource.DatabaseTableDataSource.initParameters(Unknown Source)
at org.persvr.data.DataSourceManager.initSource(Unknown Source)
at org.persvr.data.DataSourceManager.<clinit>(Unknown Source)
at org.persvr.data.Identification.idForString(Unknown Source)
at org.persvr.Persevere.load(Unknown Source)
at org.persvr.job.SampleData.execute(Unknown Source)
at org.persvr.job.Upgrade.execute(Unknown Source)
at org.persvr.remote.PersevereFilter.init(Unknown Source)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:620)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1234)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:460)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:222)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.persvr.util.JettyStart.main(Unknown Source)
實際上,我試圖擴大HelloWorld項目作爲exercize,所以我在我的helloWorld/WEB-INF添加一個postgres.json文件/ config文件夾。下面是該文件的內容:
{"id":"postgres.json",
"sources":[
{"name":"addressTable",
"sourceClass":"org.persvr.datasource.DatabaseTableDataSource",
"connection":"jdbc:postgresql://hostname:5432/pnp?user=user1&pass=mypassword",
"driver":"org.postgresql.Driver",
"camelCaseColumnNames": false,
"table":"addr",
"idColumn":"addr_id",
"dataColumns":["addr_stat_cd","addr1","addr2","city","state","zip","zip_ext","cntry_cd","last_upd_uid","last_upd_dttm","create_uid","create_dt
tm"],
"schema":{
"data":{"$ref":"../addressTable/"}
}
}]
}
有誰能告訴我爲什麼persevere不能找到postgres驅動程序嗎?
謝謝, Lancelot。