centos7 apahce can only display the test page, how to solve it?

In centos7 environment, Apache2.4.6, when accessing the set site, the default test page is always displayed.
Has anyone encountered this problem?

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In centos7 environment, Apache2.4.6, when accessing the set site, the default test page is always displayed.
Has anyone encountered this problem?

Has Apache restarted?

1. First confirm whether the www directory is pointed correctly.
2. Confirm whether the configuration file is configured correctly.
3. Whether to restart after modifying the configuration file.