『请教』 关于Session的问题！

Question

在同一个webapp吗???感觉你好像转到的是另外一个webapp里去了.

Answer 1

是在同一个webapp下面。
我在tomcat里面的配置是：d:\myproject\p1（这是存放我的文件的地方）
p1的目录结构：p1
|--manager
      |----a.jsp、b.jsp
|--css
|--……
|--WEB-INF
      |----classes
              |----ea
                    |----Check.class(这就是那个servlet)a.jsp中的form的action：action="../servlet/ea.Check"

Answer 2

to:ecaol(孤单北半球)
你说的是什么意思？可否详细说明？谢谢。

Answer 3

试试response.sendRedirect(response.encodeRedirectURL("../manager/b.jsp"));

Answer 4

或者是IE的Cookie被禁用了，打开试试上面的解决方式则可以不管ie cookie的设置

Answer 5

to：ESoftWind()
我的p1下面有一个index.jsp。用response.sendRedirect(../index.jsp);返回，index.jsp可以读取出session，但是用response.sendRedirect(../manager/b.jsp);就不行了。我怀疑是我的tomcat的配置问题。IE的Cookie没有被禁用。
晚上试试你的response.sendRedirect(response.encodeRedirectURL("../manager/b.jsp"));这种方法。谢谢。谢谢softjedia(完完全全)帮我顶。

Answer 6

把
response.sendRedirect("../manager/b.jsp");换成这个试试
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(address);
dispatcher.forward(request, response);

Answer 7

你这个Servlet在TOMCAT里是怎么配置的！！
贴出来给大家看看！！

Answer 8

sendRedirect和forward不同的。应该是forward。

Answer 9

下面是Server.xml
<Server port="8005" shutdown="SHUTDOWN" debug="0">  <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
            debug="0"/>
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
            debug="0"/>  <GlobalNamingResources>    <Environment name="simpleValue" type="java.lang.Integer" value="30"/>    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
       description="User database that can be updated and saved">
    </Resource>
    <ResourceParams name="UserDatabase">
      <parameter>
        <name>factory</name>
        <value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
      </parameter>
      <parameter>
        <name>pathname</name>
        <value>conf/tomcat-users.xml</value>
      </parameter>
    </ResourceParams>  </GlobalNamingResources>  <Service name="Tomcat-Standalone">    <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
               port="8080" minProcessors="5" maxProcessors="75"
               enableLookups="true" redirectPort="8443"
               acceptCount="10" debug="0" connectionTimeout="20000"
               useURIValidationHack="false" />    <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
               port="8009" minProcessors="5" maxProcessors="75"
               enableLookups="true" redirectPort="8443"
               acceptCount="10" debug="0" connectionTimeout="20000"
               useURIValidationHack="false"
               protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler"/>    <Engine name="Standalone" defaultHost="localhost" debug="0">      <Logger className="org.apache.catalina.logger.FileLogger"
              prefix="catalina_log." suffix=".txt"
              timestamp="true"/>      <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
                 debug="0" resourceName="UserDatabase"/>      <Host name="localhost" debug="0" appBase="webapps" 
       unpackWARs="true" autoDeploy="true">        <Logger className="org.apache.catalina.logger.FileLogger"
                 directory="logs"  prefix="localhost_log." suffix=".txt"
        timestamp="true"/>        <Context path="/examples" docBase="examples" debug="0"
                 reloadable="true" crossContext="true">
          <Logger className="org.apache.catalina.logger.FileLogger"
                     prefix="localhost_examples_log." suffix=".txt"
           timestamp="true"/>
          <Ejb   name="ejb/EmplRecord" type="Entity"
                 home="com.wombat.empl.EmployeeRecordHome"
               remote="com.wombat.empl.EmployeeRecord"/>          
 <Environment name="maxExemptions" type="java.lang.Integer"
                      value="15"/>
          <Parameter name="context.param.name" value="context.param.value"
                     override="false"/>
          <Resource name="jdbc/EmployeeAppDb" auth="SERVLET"
                    type="javax.sql.DataSource"/>
          <ResourceParams name="jdbc/EmployeeAppDb">
            <parameter><name>user</name><value>sa</value></parameter>
            <parameter><name>password</name><value></value></parameter>
            <parameter><name>driverClassName</name>
              <value>org.hsql.jdbcDriver</value></parameter>
            <parameter><name>url</name>
              <value>jdbc:HypersonicSQL:database</value></parameter>
          </ResourceParams>
          <Resource name="mail/Session" auth="Container"
                    type="javax.mail.Session"/>
          <ResourceParams name="mail/Session">
            <parameter>
              <name>mail.smtp.host</name>
              <value>localhost</value>
            </parameter>
          </ResourceParams>
          <ResourceLink name="linkToGlobalResource" 
                    global="simpleValue"
                    type="java.lang.Integer"/>
        </Context>
<!-- dooluby add -->
<Context path="" docBase="d:\myproject\p1" debug="0" reloadable="true">
          <Resource name="jdbc/p1" auth="Container" type="javax.sql.DataSource"/>
          <ResourceParams name="jdbc/p1">
          <parameter>
            <name>factory</name>
            <value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
          </parameter>
          <parameter>
            <name>maxActive</name>
            <value>100</value>
          </parameter>
          <parameter>
            <name>maxIdle</name>
            <value>30</value>
          </parameter>
          <parameter>
            <name>maxWait</name>
            <value>10000</value>
          </parameter>
          <parameter>
            <name>username</name>
            <value>test</value>
          </parameter>
          <parameter>
            <name>password</name>
            <value>test</value>
          </parameter>
          <parameter>
            <name>driverClassName</name>
            <value>com.microsoft.jdbc.sqlserver.SQLServerDriver</value>
          </parameter>
          <parameter>
            <name>url</name>
            <value>jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=p1</value>
          </parameter>      
          </ResourceParams> 
       </Context>
      <!-- end -->
      </Host>    </Engine>  </Service></Server>在d:\myproject\p1下有个p1.xml：
<Context path="" docBase="d:\myproject\p1" debug="0" reloadable="true" crossContext="true">
</Context>在d:\myproject\p1\WEB-INF下有个Web.xml：
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
 <display-name>My Web</display-name>
 <servlet-mapping>
  <servlet-name>invoker</servlet-name>
  <url-pattern>/servlet/*</url-pattern>
 </servlet-mapping>
 <resource-ref>
  <res-ref-name>jdbc/news</res-ref-name>
  <res-type>javax.sql.DataSource</res-type>
  <res-auth>Container</res-auth>
 </resource-ref>
</web-app>大家帮忙看看。。谢谢。