请求者无法建立连接。 Jetty，Lift / Scala，iSeries DB2 / 400

时间：2013-12-16 03:51:09

标签： scala jetty lift ibm-midrange db2-400

我正在努力完成Gilberto T. Garcia Jr的Lift应用程序开发手册，并遇到了一个我似乎无法解决的问题。我已经复制了源代码Chap06-map-table，我正在尝试修改它以使用我的IBM i（iSeries，AS / 400，i5）数据库。我能够使用Squeryl Record使其与第一种连接一起工作。但是，我似乎无法想象如何使用JNDI数据源使其工作。我花了几天的时间在互联网上搜索设置它的例子，并没有找到一个涉及DB / 400数据库连接的好例子。下面是我尝试启动容器时遇到的错误以及我为了使其工作而修改的代码。任何帮助，将不胜感激。 jt4oo.jar（jtOpen）的数据源类似乎有一些选择，我不确定哪个是最好用的，也可能是另一个。我一直在尝试这三个中的每一个，我假设第一个是正确的。

com.ibm.as400.access.AS400JDBCManagedConnectionPoolDataSource
com.ibm.as400.access.AS400JDBCConnectionPoolDataSource
com.ibm.as400.access.AS400JDBCDataSource

感谢。鲍勃

这是错误的开始： 

> container:start
[info] jetty-8.0.4.v20111024
[info] No Transaction manager found - if your webapp requires one, please config
ure one.
[info] NO JSP Support for /, did not find org.apache.jasper.servlet.JspServlet
[info] started o.e.j.w.WebAppContext{/,[file:/C:/Users/Bob/Lift26Projects/scala_
210/chap06-map-table/src/main/webapp/]}
[info] started o.e.j.w.WebAppContext{/,[file:/C:/Users/Bob/Lift26Projects/scala_
210/chap06-map-table/src/main/webapp/]}
18:21:47.062 [pool-7-thread-1] ERROR n.liftweb.http.provider.HTTPProvider - Fail
ed to Boot! Your application may not run properly
java.sql.SQLException: The application requester cannot establish the connection
. ("jdbc:as400://www.busapp.com;libraries=PLAY2TEST";naming=system;errors=full;)
        at com.ibm.as400.access.JDError.throwSQLException(JDError.java:524) ~[jt
400-6.7.jar:JTOpen 6.7]
        at com.ibm.as400.access.AS400JDBCConnection.setProperties(AS400JDBCConne
ction.java:3142) ~[jt400-6.7.jar:JTOpen 6.7]
        at com.ibm.as400.access.AS400JDBCManagedDataSource.createPhysicalConnect...

我的Build.sbt文件： 

name := "Lift 2.5 starter template"
version := "0.0.1"
organization := "net.liftweb"
scalaVersion := "2.10.0"
resolvers ++= Seq("snapshots" at "http://oss.sonatype.org/content/repositories/snapshots",
          "staging"         at "http://oss.sonatype.org/content/repositories/staging",
          "releases"        at "http://oss.sonatype.org/content/repositories/releases"
            )
seq(com.github.siasia.WebPlugin.webSettings :_*)
unmanagedResourceDirectories in Test <+= (baseDirectory) { _ / "src/main/webapp" }
scalacOptions ++= Seq("-deprecation", "-unchecked")
env in Compile := Some(file("./src/main/webapp/WEB-INF/jetty-env.xml") asFile)
libraryDependencies ++= {
  val liftVersion = "2.5"
  Seq(
    "net.liftweb"       %% "lift-webkit"        % liftVersion        % "compile",
    "net.liftmodules"   %% "lift-jquery-module_2.5" % "2.3",
    "org.eclipse.jetty"     % "jetty-webapp"       % "8.0.4.v20111024"  % "container",
    "org.eclipse.jetty"     % "jetty-plus"         % "8.0.4.v20111024"  % "container",
    "ch.qos.logback"    % "logback-classic"     % "1.0.6",
    "org.specs2"        %% "specs2"             % "1.14"           % "test",
    "net.liftweb"       %% "lift-squeryl-record" % liftVersion % "compile",
    "net.sf.jt400"    % "jt400"       % "6.7",
    "org.liquibase"    %  "liquibase-maven-plugin" % "3.0.2"
  )
}

这是我的boot.scala文件： 

package bootstrap.liftweb

    import _root_.liquibase.database.DatabaseFactory
    import _root_.liquibase.database.jvm.JdbcConnection
    import _root_.liquibase.exception.DatabaseException
    import _root_.liquibase.Liquibase
    import _root_.liquibase.resource.FileSystemResourceAccessor
    import net.liftweb._
    import util._
    import Helpers._
    import common._
    import http._
    import sitemap._
    import Loc._
    import net.liftmodules.JQueryModule
    import net.liftweb.http.js.jquery._
    import net.liftweb.squerylrecord.SquerylRecord
    import org.squeryl.Session
    import java.sql.{SQLException, DriverManager}
    import org.squeryl.adapters.DB2Adapter
    import javax.naming.InitialContext
    import javax.sql.DataSource
    import code.model.LiftBookSchema
    /**
    * A class that's instantiated early and run.  It allows the application
    * to modify lift's environment
    */
    class Boot {
     def runChangeLog(ds: DataSource) {
     val connection = ds.getConnection
       try {
        val database = DatabaseFactory.getInstance().
         findCorrectDatabaseImplementation(new JdbcConnection(connection))
        val liquibase = new Liquibase(
        "database/changelog/db.changelog-master.xml",
        new FileSystemResourceAccessor(),
        database
        )

      liquibase.update(null)
      } catch {
        case e: SQLException => {
         connection.rollback()
         throw new DatabaseException(e)
       }
     }
    }
    def boot {

    // where to search snippet
    LiftRules.addToPackages("code")

    prepareDb()


    // Build SiteMap
    val entries = List(
      Menu.i("Home") / "index", // the simple way to declare a menu

      // more complex because this menu allows anything in the
      // /static path to be visible
      Menu(Loc("Static", Link(List("static"), true, "/static/index"),
        "Static Content")))

    // set the sitemap.  Note if you don't want access control for
    // each page, just comment this line out.
    LiftRules.setSiteMap(SiteMap(entries: _*))

    //Show the spinny image when an Ajax call starts
    LiftRules.ajaxStart =
      Full(() => LiftRules.jsArtifacts.show("ajax-loader").cmd)

    // Make the spinny image go away when it ends
    LiftRules.ajaxEnd =
      Full(() => LiftRules.jsArtifacts.hide("ajax-loader").cmd)

    // Force the request to be UTF-8
    LiftRules.early.append(_.setCharacterEncoding("UTF-8"))

    // Use HTML5 for rendering
    LiftRules.htmlProperties.default.set((r: Req) =>
      new Html5Properties(r.userAgent))

    //Init the jQuery module, see http://liftweb.net/jquery for more information.
    LiftRules.jsArtifacts = JQueryArtifacts
    JQueryModule.InitParam.JQuery = JQueryModule.JQuery172
    JQueryModule.init()

  }

  def prepareDb() {

    Class.forName("com.ibm.as400.access.AS400JDBCManagedConnectionPoolDataSource")

    val ds = new InitialContext().lookup("java:/comp/env/jdbc/dsliftbook").asInstanceOf[DataSource]

    runChangeLog(ds)

    SquerylRecord.initWithSquerylSession(
      Session.create(
        ds.getConnection,
        new DB2Adapter)
    )
  }


}

这是我的jetty-env-xml文件

<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure.dtd">
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
    <New id="dsliftbook" class="org.eclipse.jetty.plus.jndi.Resource">
   <Arg></Arg>
   <Arg>jdbc/dsliftbook</Arg>
   <Arg>
      <New class="com.ibm.as400.access.AS400JDBCManagedConnectionPoolDataSource">
         <Set name="serverName">"jdbc:as400://www.[server].com;libraries=PLAY2TEST";naming=system;errors=full;</Set>
         <Set name="user">[user]</Set>
         <Set name="password">[password]</Set>
       </New>
   </Arg>
    </New>
</Configure>

1 个答案:

答案 0 :(得分：1)

好的，我已经设法联系了。一个问题是jetty-env-xml文件中的引号。我使用的用户名/密码显然不具备完成这项工作所需的权限我不知道为什么，因为这是我用于所有iSeries开发的相同ID /密码。所以现在，我是另一个具有安全官权限的用户配置文件，直到我能够弄清楚发生了什么或需要什么权限。

登录后，我无法为用户设置库列表，这导致SQL失败。它正在寻找与用户ID相同的库名称。目前，我已经通过创建一个名为与用户ID相同的新库来解决这个问题。

另一个问题是即使我同时提供ID和密码，我也会在连接之前提示输入ID /密码。填写了ID和URL，但密码始终必须重新键入。

我已经包含了jetty-env-xml文件和boot.scala文件的当前源代码。希望这可以帮助其他人。

感谢Dave和James的帮助！

鲍勃

<强> boot.scala： 

package bootstrap.liftweb

// import _root_.liquibase.database.DatabaseFactory
// import _root_.liquibase.database.jvm.JdbcConnection
// import _root_.liquibase.exception.DatabaseException
// import _root_.liquibase.Liquibase
// import _root_.liquibase.resource.FileSystemResourceAccessor
import net.liftweb._
import util._
import Helpers._

import common._
import http._
import sitemap._
import Loc._
import net.liftmodules.JQueryModule
import net.liftweb.http.js.jquery._
import net.liftweb.squerylrecord.SquerylRecord
import org.squeryl.Session
import java.sql.{SQLException, DriverManager}
import org.squeryl.adapters.DB2Adapter
import javax.naming.InitialContext
import javax.sql.DataSource
import code.model.LiftBookSchema
import com.ibm.as400.access.AS400JDBCManagedConnectionPoolDataSource



/**
 * A class that's instantiated early and run.  It allows the application
 * to modify lift's environment
 */
class Boot {
  // def runChangeLog(ds: DataSource) {
  //   val connection = ds.getConnection

  //   try {
  //     val database = DatabaseFactory.getInstance().
  //       findCorrectDatabaseImplementation(new JdbcConnection(connection))

  //     val liquibase = new Liquibase(
  //       "database/changelog/db.changelog-master.xml",
  //       new FileSystemResourceAccessor(),
  //       database
  //     )

  //     liquibase.update(null)
  //   } catch {
  //     case e: SQLException => {
  //       connection.rollback()
  //       throw new DatabaseException(e)
  //     }
  //   }
  // }

  def boot {

    // where to search snippet
    LiftRules.addToPackages("code")

    prepareDb()


    // Build SiteMap
    val entries = List(
      Menu.i("Home") / "index", // the simple way to declare a menu

      // more complex because this menu allows anything in the
      // /static path to be visible
      Menu(Loc("Static", Link(List("static"), true, "/static/index"),
        "Static Content")))

    // set the sitemap.  Note if you don't want access control for
    // each page, just comment this line out.
    LiftRules.setSiteMap(SiteMap(entries: _*))

    //Show the spinny image when an Ajax call starts
    LiftRules.ajaxStart =
      Full(() => LiftRules.jsArtifacts.show("ajax-loader").cmd)

    // Make the spinny image go away when it ends
    LiftRules.ajaxEnd =
      Full(() => LiftRules.jsArtifacts.hide("ajax-loader").cmd)

    // Force the request to be UTF-8
    LiftRules.early.append(_.setCharacterEncoding("UTF-8"))

    // Use HTML5 for rendering
    LiftRules.htmlProperties.default.set((r: Req) =>
      new Html5Properties(r.userAgent))

    //Init the jQuery module, see http://liftweb.net/jquery for more information.
    LiftRules.jsArtifacts = JQueryArtifacts
    JQueryModule.InitParam.JQuery = JQueryModule.JQuery172
    JQueryModule.init()

  }

  def prepareDb() {

    Class.forName("com.ibm.as400.access.AS400JDBCManagedConnectionPoolDataSource")

    val ds = new InitialContext().lookup("java:/comp/env/jdbc/dsliftbook").asInstanceOf[DataSource]

    // runChangeLog(ds)

    SquerylRecord.initWithSquerylSession(Session.create(ds.getConnection, new DB2Adapter)
    )
  }
}

<强>码头-ENV-XML 

<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure.dtd">
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
    <New id="dsliftbook" class="org.eclipse.jetty.plus.jndi.Resource">
   <Arg></Arg>
   <Arg>jdbc/dsliftbook</Arg>
   <Arg>
      <New class="com.ibm.as400.access.AS400JDBCManagedConnectionPoolDataSource">
         <Set name="serverName">www.[server].com</Set>
         <Set name="user">DBUSER</Set>
         <Set name="password">DBUSER</Set>
      </New>
   </Arg>
    </New>
</Configure>
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