Java实现基于token认证( 四 )

</dependency>

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-databind</artifactId>

<version>2.9.4</version>

</dependency>

2.2 加密

//加密的数据

int userId = 51;

//加密的签名

Algorithm algorithm = Algorithm.HMAC256(\"eyJhbGciO\");

//加密头

Map<String Object> header = new HashMap<String Object>();

header.put(\"typ\" \"JWT\");

header.put(\"alg\" \"HS256\");

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