1. 在Tomcat安装目录下conf目录下server.xml中最后的“</Host>”标记之前添加
如下配置:
<Context path="/chaoshi" docBase="chaoshi"
debug="5" reloadable="true" crossContext="true" workDir="">
<Resource name="jdbc/chaoshids"
auth="Container"
type="javax.sql.DataSource"
maxActive="100" maxIdle="30" maxWait="10000"
username="root" password=""
driverClassName="org.gjt.mm.mysql.Driver"
url="jdbc:mysql://localhost/chaoshi"/>
</Context>
2. 在本应用的WEB-INF目录下web.xml文件中添加如下配置
<resource-ref>
<description>DB Connection</description>
<res-ref-name>jdbc/chaoshids</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
3. 在JSP或Servlet或JavaBean中用如下Java代码获得数据库连接
Context initial = new InitialContext();
//其中mysql为数据源jndi名称
DataSource ds = (DataSource)initial.lookup("java:comp/env/jdbc/chaoshids");
Connection con=ds.getConnection();
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chaoshi.zip_网上超市系统_购物市场
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2022-09-23
13:01:43
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温馨提示
“需求决定市场”,这是一个亘古未变的法则。当下网络发展迅猛,人们对网络的信任度和依赖度均有很大的提高,这一现象被有商业头脑的人发现,从而开发出网上购物这种新型购物方式,这极大改变了传统的消费方式。同传统的购物方式相比,网上购物有许多优点,如:方便性,节约时间,随意性。 上述优点足可以使网络购物系统大红大紫,当然这一点已经被商家发现,因此开发一个网上购物超市系统是很有必要的。
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