src/org/nutz/dao/jdbc/JdbcExpertConfigFile.java
public void setExperts(Map<String, Class<? extends JdbcExpert>> experts) {
        this.experts = experts;
        this._experts = new LinkedHashMap<Pattern, Class<? extends JdbcExpert>>();
        for (Entry<String, Class<? extends JdbcExpert>> entry : experts.entrySet()) {
            //忽略大小写,并且让换行符与.能够匹配
            _experts.put(Pattern.compile(entry.getKey(), Pattern.DOTALL & Pattern.CASE_INSENSITIVE), entry.getValue());
        }
    }
public void setExperts(Map<String, Class<? extends JdbcExpert>> experts) {
        this.experts = experts;
        this._experts = new LinkedHashMap<Pattern, Class<? extends JdbcExpert>>();
        for (Entry<String, Class<? extends JdbcExpert>> entry : experts.entrySet()) {
            //忽略大小写,并且让换行符与.能够匹配
            _experts.put(Pattern.compile(entry.getKey(), Pattern.DOTALL & Pattern.CASE_INSENSITIVE), entry.getValue());
        }
    }
在 fromJson 的时候，会被调用