https://stackoverflow.com/questions/9183321/how-to-use-jndi-datasource-provided-by-tomcat-in-spring
https://stackoverflow.com/questions/5940895/how-to-test-a-mocked-jndi-datasource-with-spring
https://tomcat.apache.org/tomcat-7.0-doc/jndi-datasource-examples-howto.html
Adding Custom Resource Factories
通过实现 javax.naming.spi.ObjectFactory 接口，并把其配置在Context里：
<Context ...>
...
<Resource name="bean/MyBeanFactory" auth="Container"
type="com.mycompany.MyBean"
factory="com.mycompany.MyBeanFactory"
singleton="false"
bar="23"/>
...
</Context>
详细参见 https://tomcat.apache.org/tomcat-7.0-doc/jndi-resources-howto.html#Adding_Custom_Resource_Factories
List All Resources
如果你获取不到 Resource， 可以通过输出全部的信息来 Debug:
public static Map toMap(Context ctx) throws NamingException {
String namespace = ctx instanceof InitialContext ? ctx.getNameInNamespace() : "";
HashMap<String, Object> map = new HashMap<String, Object>();
NamingEnumeration<NameClassPair> list = ctx.list(namespace);
while (list.hasMoreElements()) {
NameClassPair next = list.next();
String name = next.getName();
String jndiPath = namespace + name;
Object lookup;
try {
Object tmp = ctx.lookup(jndiPath);
if (tmp instanceof Context) {
lookup = toMap((Context) tmp);
} else {
lookup = tmp.toString();
}
} catch (Throwable t) {
lookup = t.getMessage();
}
map.put(name, lookup);
}
return map;
}
// Print the Context to JSON string
System.out.println(new ObjectMapper().writeValueAsString(this.toMap(envCtx)));
或者只打印变量名：
InitialContext ctx = new InitialContext();
NamingEnumeration<NameClassPair> list = ctx.list("");
while (list.hasMore()) {
System.out.println(list.next().getName());
}
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