How to get enum by user defined name in java?

Question

I am defined a enum in Java 8 like this:

public enum Cflb implements IBaseEnum {        
    没收违法所得("没收违法所得、没收非法财物", 2),
    暂扣或者吊销许可证("暂扣或者吊销许可证、暂扣或者吊销执照", 4);
    private String name;
    private int value;

    public void setName(String name) {
        this.name = name;
    }

    public void setValue(int value) {
        this.value = value;
    }

    Cflb(String name, int value) {
        this.name = name;
        this.value = value;
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public int getValue() {
        return value;
    }  
}

How to get enumn by "暂扣或者吊销许可证、暂扣或者吊销执照"? attention:not get the enumn by value. The code maybe like this:

Cflb cflb = getEnumnByInternalName("暂扣或者吊销许可证、暂扣或者吊销执照");

Loop through the enum elements until you find the one with the matching name. — khelwood
– khelwood, Commented Nov 29, 2018 at 10:14
By the way, it's unorthodox to have setters in an enum. Enums are generally expected to be fully constant. — khelwood
– khelwood, Commented Nov 29, 2018 at 10:15
What exactly is IBaseEnum? Is that a "real" Java enum? Or just a class that is called "enum"? — user330315
– user330315, Commented Nov 29, 2018 at 10:19

f1sh · Accepted Answer · 2018-11-29 10:23:56Z

3

Loop over the enum constants using values() and compare the name:

static Cflb getEnumnByInternalName(String iname) {
  for(Cbfl c : values()){
    if(c.name.equals(iname)){
      return c;
    }
  }
  return null; //or throw an Exception, whatever you need
}

Then you can use it like this:

Cflb cflb = Cflb.getEnumnByInternalName("暂扣或者吊销许可证、暂扣或者吊销执照");

And as @khelwood mention above: Remove the setters.

answered Nov 29, 2018 at 10:23

f1sh

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1 Comment

Dolphin Over a year ago

Thank you,I've solved the problem by your tips.@f1sh

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