Java-通过字符串获取类属性

Question

How can I return a property with String name of it inside a class?
My pseudo code is:

class Foo {
    public static final String test = "test";

    public static String bar(String name) {
        return foo.getProperty(name);
    }
}

UPDATE
I have a class with "setting" name , and this class have a method with getSetting() name , this method get a string key and if a property exist with this key, return the property , if no , search in database for this key,it's nod good solution?

Answer 1

Try Java Reflection - Fields with #getFields();

In your scenario, you can try:

public String getSetting(String strKey){
        Class tmp = setting.class;    
        try {
            Field field = tmp.getField(strKey);
            return value; // depend on your class instance or  field type.
        } catch (NoSuchFieldException e) {
            // get data from database and return
        } 
}