Tomcat上配置连接池{ connect error=Name [jdbc/OracleDB] is not bound in this Context. Unable to find [jdbc]}

. 在学习期间，从未实践过在tomcat上配置连接池，今天终于实现一次，在tomcat玩了一把，不知道你是否现在有和我一样的困境。废话少说直接上代码   java 

 public static Connection getConnection_tomcat() {
        Connection conn = null;
        try {
            Context initCtx = new InitialContext();
            Context ctx = (Context) initCtx.lookup("java:comp/env");

            Object obj = (Object) ctx.lookup("jdbc/OracleDB");
            javax.sql.DataSource ds = (javax.sql.DataSource) obj;
            return conn = ds.getConnection();
        }
        catch (Exception e) {

            System.out.println("connect error=" + e.getMessage());
            return null;
        }
    }

在tomcat->conf->server.xml

  <GlobalNamingResources>
    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users
    -->
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="conf/tomcat-users.xml" />

<!-- 在tomcat 配置连接池 -->

<Resource name="jdbc/OracleDB"  auth="Container"           
              type="javax.sql.DataSource"  
  driverClassName="oracle.jdbc.driver.OracleDriver"    
  url=""  
  maxActive="50"    
  maxldle="10"    
  maxWait="5000"  
  username=""  
  password="" />  
  </GlobalNamingResources>

在tomcat->conf->context.xml　

<Context>

    <WatchedResource>WEB-INF/web.xml</WatchedResource>


<!-- 在配置一个连接池 -->
<ResourceLink global="jdbc/OracleDB" name="jdbc/OracleDB" type="javax.sql.DataSource"/>  
</Context>

这样就大功告成了！