Question

所以当我尝试

时

String string1 = "{"needs_reward":false,"has_voted":false,"sites":[{"id":3922,"name":"RuneTopList","has_voted":false,"vote_url":"http://api.runetoplist.com/vote/out?siteid=3922"},{"id":4613,"name":"RuneLocus","has_voted":false,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4613"},{"id":4339,"name":"UltimatePrivateServers","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4339"},{"id":4340,"name":"TopG","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4340"},{"id":4341,"name":"MMORPGToplist","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4341"},{"id":4622,"name":"Rune-Server","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4622"},{"id":4623,"name":"GTop100","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4623"},{"id":4828,"name":"GamingTopList","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4828"},{"id":4829,"name":"RSPS-List","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4829"},{"id":4861,"name":"Top100Arena","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4861"}]}"

我收到错误，因为它包含括号，我如何将其设置为字符串？谢谢你的帮助。

Answer 1

括号不是问题 - 引号是。例如，这很好：

String braces = "{}";

引号（"）用于终止字符串，因此您需要使用\转义它：

String sentence = "My son said, \"Hello, world!\" and then ran away.";

创建一个字符串：

My son said, "Hello, world!" and then ran away.

如果你的文字中需要\，你也需要逃避它 - 但不能正斜线：

String slashes = "Backslash: \\ and forward slash: /";

你不需要在字符串中转义单引号，但你做需要在字符文字中转义它们（因为'否则就是文字的结尾）：

String text = "I don't need a backslash";
char c = '\'';

我鼓励你不要在你的代码中直接存储大量的文本 - 如果你把它存储为在执行时加载数据的文本文件，它通常更具可读性。

Answer 2

让我举个例子：

String str = "Hello \"joe\"!";

Answer 3

这是一个json对象，更好地格式化它。为什么不使用某些JSON构建器从Object创建String。并将此对象描述为您在此处看到的内容。

杰克逊是一个很好的api。

class Reward {
    boolean needs_reward = false;
    boolean has_voted = false;
    List<Sites> sites = new ArrayList();
}

class Sites {
   int id;
   String name;
   boolean has_voted;
   String vote_url;
}

-

"{"needs_reward":false,"has_voted":false,
"sites":[
    {"id":3922,"name":"RuneTopList","has_voted":false,"vote_url":"http://api.runetoplist.com/vote/out?siteid=3922"},
    {"id":4613,"name":"RuneLocus","has_voted":false,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4613"},
    {"id":4339,"name":"UltimatePrivateServers","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4339"},
    {"id":4340,"name":"TopG","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4340"},
    {"id":4341,"name":"MMORPGToplist","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4341"},
    {"id":4622,"name":"Rune-Server","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4622"},
    {"id":4623,"name":"GTop100","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4623"},
    {"id":4828,"name":"GamingTopList","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4828"},
    {"id":4829,"name":"RSPS-List","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4829"},
    {"id":4861,"name":"Top100Arena","has_voted":true,"vote_url":"http://api.runetoplist.com/vote/out?siteid=4861"}]
}"

我如何制作包含括号的字符串？ - java

3 个答案: