进入到wordpress数据库按照新老域名将下面的四个sql写好，然后执行，
完美解决wordpress项目替换域名
UPDATE wp_options SET option_value = replace(option_value, ‘www.old.com’,‘www.new.com’) ;
UPDATE wp_posts SET post_content = replace(post_content, ‘www.old.com’,‘www.new.com’) ;
UPDATE wp_comments SET comment_content = replace(comment_content, ‘www.old.com’, ‘www.new.com’) ;
UPDATE wp_comments SET comment_author_url = replace(comment_author_url, ‘www.old.com’, ‘www.new.com’) ;