guava布隆过滤器

pom引入依赖

<dependency>

            <groupId>com.google.guava</groupId>

            <artifactId>guava</artifactId>

            <version>28.0-jre</version>

</dependency>

一个小例子

public static void main(String... args){

        /**

         * 创建一个插入对象为一亿，误报率为0.01%的布隆过滤器

         */

        BloomFilter<CharSequence> bloomFilter = BloomFilter.create(Funnels.stringFunnel(Charset.forName("utf-8")), 100000000, 0.0001);

        bloomFilter.put("121");

        bloomFilter.put("122");

        bloomFilter.put("123");

        System.out.println(bloomFilter.mightContain("121"));

    }