JNDI学习手记

最新推荐文章于 2025-08-22 10:09:41 发布

翻译最新推荐文章于 2025-08-22 10:09:41 发布 · 584 阅读

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A.jndi 概念

http://baike.baidu.com/view/209575.htm

tomcat官方文档，tomcat启动后访问http://localhost:8080/docs/jndi-resources-howto.html

个人理解，基于目录服务技术的一中实现，可以对dns，ladp等服务提供支持。

B.结合tomcat配置，3种配置方式

1)全局配置，tomcat安装目录conf文件下的context.xml增加context节点下增加

Conf/context.xml代码
<Resource name="jdbc/testDB" auth="Container"
type="javax.sql.DataSource"
driverClassName="oracle.jdbc.driver.OracleDriver"
url="jdbc:oracle:thin:@127.0.0.1:1521:orcl"
username="test"
password="test"
maxActive="50"
maxIdle="30"
maxWait="10000" />
<Resource name="jdbc/testDB" auth="Container"
    type="javax.sql.DataSource"
   driverClassName="oracle.jdbc.driver.OracleDriver"
    url="jdbc:oracle:thin:@127.0.0.1:1521:orcl"
    username="test"
    password="test"
    maxActive="50"
    maxIdle="30"
    maxWait="10000" />

或者server.xml文件 GlobalNamingResources节点加入

Java代码
<Resource
      name="jdbc/testDB"
      auth="Container"
      type="javax.sql.DataSource"
      password="test"
      username="test"
      driverClassName="oracle.jdbc.driver.OracleDriver"
      url="jdbc:oracle:thin:@127.0.0.1:1521:orcl"
      maxIdle="2"
      maxWait="5000"
      maxActive="4"
      factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
      />
<Resource
      name="jdbc/testDB"
   auth="Container"
      type="javax.sql.DataSource"
      password="test"
   username="test"
      driverClassName="oracle.jdbc.driver.OracleDriver"
      url="jdbc:oracle:thin:@127.0.0.1:1521:orcl"
   maxIdle="2"
      maxWait="5000"
      maxActive="4"
   factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
   />
然后再context.xml文件加入ResourceLink

Context.xml代码
1.<ResourceLink name="jdbc/testDB" type="javax.sql.DataSource" global="jdbc/icacDb"/>
<ResourceLink name="jdbc/testDB" type="javax.sql.DataSource" global="jdbc/icacDb"/>
2)局部配置1，server.xml<host>标签内加入context节点

Java代码
<Context path="/test_jndi" docBase="/test_jndi">
   <Resource
    name="jdbc/testDb"
auth="Container"
    type="javax.sql.DataSource"
    password="test"
username="test"
    driverClassName="oracle.jdbc.driver.OracleDriver"
    url="jdbc:oracle:thin:@127.0.0.1:1521:orcl"
maxIdle="2"
    maxWait="5000"
    maxActive="4"
    factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
    />
  <Context path="/test_jndi" docBase="/test_jndi">
     <Resource
      name="jdbc/testDb"
   auth="Container"
      type="javax.sql.DataSource"
      password="test"
   username="test"
      driverClassName="oracle.jdbc.driver.OracleDriver"
      url="jdbc:oracle:thin:@127.0.0.1:1521:orcl"
   maxIdle="2"
      maxWait="5000"
      maxActive="4"
      factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
      />
3)局部配置2，部署应用web项目的META-INF下创建context.xml文件内容如下

Context.xml代码
<?xml version="1.0" encoding="UTF-8"?>
<Context>
                  <Resource
      name="jdbc/testDb"
      auth="Container"
      type="javax.sql.DataSource"
      password="test"
      username="test"
      driverClassName="oracle.jdbc.driver.OracleDriver"
    url="jdbc:oracle:thin:@127.0.0.1:1521:orcl"
      maxIdle="2"
      maxWait="5000"
      maxActive="4"
      factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
      />
</Context>
<?xml version="1.0" encoding="UTF-8"?>
<Context>
      <Resource
      name="jdbc/testDb"
   auth="Container"
      type="javax.sql.DataSource"
      password="test"
   username="test"
      driverClassName="oracle.jdbc.driver.OracleDriver"
      url="jdbc:oracle:thin:@127.0.0.1:1521:orcl"
   maxIdle="2"
      maxWait="5000"
      maxActive="4"
      factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory"
      />
</Context>
C.结合spring ioc datasource bean创建配置

Applicationcontext.xml代码


     
    
    <jee:jndi-lookup id="dataSource" jndiname="java:/comp/env/jdbc/testDb"/>




<jee:jndi-lookup id="dataSource" jndiname="java:/comp/env/jdbc/testDb"/>