我正在使用twitter api，下面的字符串正在困扰我Proyecto de ingeniera comercial, actual Profesora de matemáticas \u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000Enseña Chile

我想把它存储在postgresql中，但不接受\u0000，所以我想替换它。

我试着使用string= string.replaceAll("\\u0000", "");但它不起作用。我只知道String json = TwitterObjectFactory.getRawJSON(user);

System.out.println(json);

json = json.replaceAll("\\u0000", "");

System.out.println(json);

输出(仅重要的部分)

Proyecto de ingeniera comercial, actual Profesora de matemáticas \u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000Enseña Chile

Proyecto de ingeniera comercial, actual Profesora de matemáticas \u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000Enseña Chile

如果我把这个部分放在Java中的一个字符串中，替换程序就可以工作了，但是如果我把它放在文本文件中，或者直接在Twitter上读取它，它就不起作用了，所以我的问题是，如何从字符串中替换uUn？

顺便说一下，完整的字符串是

{"utc_offset":null,"friends_count":83,"profile_image_url_https":"https://pbs.twimg.com/profile_images/2636139584/3a8455cd94045fa6980402add14796a9_normal.jpeg","listed_count":1,"profile_background_image_url":"http://abs.twimg.com/images/themes/theme1/bg.png","default_profile_image":false,"favourites_count":0,"description":"Proyecto de ingeniera comercial, actual Profesora de matemáticas \u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000Enseña Chile","created_at":"Sat May 28 14:24:06 +0000 2011","is_translator":false,"profile_background_image_url_https":"https://abs.twimg.com/images/themes/theme1/bg.png","protected":false,"screen_name":"Fsquadritto","id_str":"306825274","profile_link_color":"0084B4","is_translation_enabled":false,"id":306825274,"geo_enabled":false,"profile_background_color":"C0DEED","lang":"es","profile_sidebar_border_color":"C0DEED","profile_location":null,"profile_text_color":"333333","verified":false,"profile_image_url":"http://pbs.twimg.com/profile_images/2636139584/3a8455cd94045fa6980402add14796a9_normal.jpeg","time_zone":null,"url":null,"contributors_enabled":false,"profile_background_tile":false,"entities":{"description":{"urls":[]}},"statuses_count":2,"follow_request_sent":false,"followers_count":36,"profile_use_background_image":true,"default_profile":true,"following":false,"name":"Fiorella Squadritto","location":"","profile_sidebar_fill_color":"DDEEF6","notifications":false,"status":{"in_reply_to_status_id_str":null,"in_reply_to_status_id":null,"possibly_sensitive":false,"coordinates":null,"created_at":"Fri Oct 12 17:40:35 +0000 2012","truncated":false,"in_reply_to_user_id_str":null,"source":"Instagram","retweet_count":1,"retweeted":false,"geo":null,"in_reply_to_screen_name":null,"entities":{"urls":[{"display_url":"instagr.am/p/QsOQxTNfvQ/","indices":[49,69],"expanded_url":"http://instagr.am/p/QsOQxTNfvQ/","url":"http://t.co/GKziME7N"}],"hashtags":[{"indices":[24,34],"text":"eduinnova"}],"user_mentions":[{"indices":[35,47],"screen_name":"ensenachile","id_str":"57099132","name":"Enseña Chile","id":57099132}],"symbols":[]},"id_str":"256811615171792896","in_reply_to_user_id":null,"favorite_count":1,"id":256811615171792896,"text":"Amando las matemáticas! #eduinnova @ensenachile http://t.co/GKziME7N","place":null,"contributors":null,"lang":"es","favorited":false}}

最佳答案：

string = string.replace("\u0000", ""); // removes NUL chars

string = string.replace("\\u0000", ""); // removes backslash+u0000

在Java源级上完成了U-逃逸字符。例如，“类”是：

public \u0063lass C {

你也不需要正则表达式。