1、备份数据库；

2、更新数据库中的有关域名的项目；

UPDATE wp_options SET option_value = REPLACE(option_value, 'www.oldname.com', 'www.newname') WHERE option_name = 'home' OR option_name = 'siteurl';

UPDATE wp_posts SET post_content = REPLACE (post_content, 'www.oldname.com', 'www.newname');

UPDATE wp_postmeta SET meta_value = REPLACE (meta_value, 'www.oldname.com','www.newname');

UPDATE wp_comments SET comment_content = REPLACE (comment_content, 'www.oldname.com', 'www.newname');

UPDATE wp_comments SET comment_author_url = REPLACE (comment_author_url, 'www.oldname.com','www.newname');

UPDATE wp_posts SET guid = REPLACE (guid, 'www.oldname.com', 'www.newname') WHERE post_type = 'attachment';