java - 如何使用Java在S3中组合策略？

如何使用Java在S3中组合策略？

Statement allowRestrictedWriteStatement = new Statement(Effect.Allow)
        .withPrincipals(new Principal("1234567"))
        .withActions(S3Actions.DeleteObject)
        .withResources(new S3ObjectResource(myBucketName, "demoFolder1"));


Statement allowRestrictedWriteStatement2 = new Statement(Effect.Deny)
        .withPrincipals(new Principal("1234567"))
        .withActions(S3Actions.DeleteObject)
        .withResources(new S3ObjectResource(myBucketName, "demoFolder2"));

Policy policy2 = new Policy()
        .withStatements(allowRestrictedWriteStatement2)
        .withStatements(allowRestrictedWriteStatement);

它仅设置allowRestrictedWriteStatement语句或Policy对象（在我们的情况下为allowRestrictedWriteStatement）中倒数第二个。有没有一种方法可以使用一个Policy对象将两个或多个策略组合在一起，请提出任何建议。

最佳答案

您需要调用一次withStatements并传递多个Statement实例（JavaDoc）：

new Policy().withStatements(allowRestrictedWriteStatement, allowRestrictedWriteStatement2);