从枚举返回字符串

Question

我想使用此枚举结构以返回字符串。

public enum Exchanges {

    PROCESSING("processing");

    private final String type;

    Exchanges(final String type) {
        this.type = type;
    }

    public String getType() {
        return type;
    }

    @Override
    public String toString() {
        return type;
    }
}

当我使用Exchanges.PROCESSING出现错误：

Syntax error, insert "VariableDeclarators" to complete 
 LocalVariableDeclaration

如何解决此问题？

Answer 1

channel.exchangeDeclare(String exchange , BuiltinExchangeType obj)

应该

channel.exchangeDeclare(Exchanges exchange , BuiltinExchangeType obj)

否则您应该更改方法调用

channel.exchangeDeclare(Exchanges.PROCESSING, BuiltinExchangeType.TOPIC);

至

channel.exchangeDeclare(Exchanges.PROCESSING.getType(), BuiltinExchangeType.TOPIC);