Driver＆＃34; com.mysql.jdbc.Driver＆＃34;不支持网址＆＃34; null＆＃34;

Question

Eclipse抛出了以下异常

ArrayList<Map> list;

descendingComparator = new Comparator<Map>() {
    @Override
    public int compare(Map lhs, Map rhs) {
        return -1;
    }
};

这是我的context.xml：

java.sql.SQLException: Driver "com.mysql.jdbc.Driver" does not support the url "null"

Answer 1

connectionUrl应该是connectionURL，就像

一样

<?xml version="1.0" encoding="UTF-8"?>
<Context path="/advancedweb">
<Realm className="org.apache.catalina.realm.JDBCRealm" debug="99"
    driverName="com.mysql.jdbc.Driver"
    connectionURL="jdbc:mysql://localhost:3306/saketramdurbha_test"
    connectionName="root" connectionPassword="pass"
    userTable="adminspass" userNameCol="Username" userCredCol="Password"
    userRoleTable="adminsrole" roleNameCol="Rolename" />
</Context>