src/org/nutz/dao/impl/sql/SqlTemplate.java
private void execute(Sql sqlObj, Map<String, Object> vars, Map<String, Object> params) {
        if (vars != null)
            sqlObj.vars().putAll(vars);

        if (params != null) {
            Map<String, Object> newParams = paramProcess(params);
            sqlObj.params().putAll(newParams);
        }

        dao().execute(sqlObj);
    }
private void execute(Sql sqlObj, Map<String, Object> vars, Map<String, Object> params) {
        if (vars != null)
            sqlObj.vars().putAll(vars);

        if (params != null) {
            Map<String, Object> newParams = paramProcess(params);
            sqlObj.params().putAll(newParams);
        }

        dao().execute(sqlObj);
    }
设置sql参数并执行sql。