That's the syntax you see with the ampersand before the parameter name. 这是您在参数名称以前与符号一同看到的语法。
The action uses Groovy notation to point to this class's auth method using the ampersand ( & ) character. 该操作使用Groovy标记来指向this类的auth方法,该方法使用了ampersand(&)字符。
Ampersand gets the address so you can use it. 你可以使用&获得地址。
The query-string elements are gathered up in an ArrayList and then joined together with an ampersand. 查询字符串元素先集中在一个ArrayList里,然后和一个&符号连接起来。
For instance the ampersand ( ) character is escaped as. 例如和号()字符被转义成。