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java /SQL / WEB随机生成UUID

q松_松q 2022-02-22 阅读 141

java

import java.util.UUID;

public String getUUID(){
        UUID uuid=UUID.randomUUID();
        String str = uuid.toString();
        String uuidStr=str.replace("-", "");
        return uuidStr;
    }

SQL

SELECT LOWER( REPLACE( newid(), '-', '' )) AS UUID

JS

function guid() {
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
        var r = Math.random() * 16 | 0,
            v = c == 'x' ? r : (r & 0x3 | 0x8);
        return v.toString(16);
    });
}
guid() // "a1ca0f7b-51bd-4bf3-a5d5-6a74f6adc1c7"
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