[英]Extract parameters and their values from query string in Java
So let's suppose I have a string like 所以我想假设我有一个字符串
"param1=value1¶m2={"url":"http://somesite.com?someparam=somevalue&someparam1=somevalue1"}¶m3=value3"
and I need it to be: 我需要它:
param1: value1
param2: {"url":"http://somesite.com?someparam=somevalue&someparam1=somevalue1"}
param3: value3
What would be the best approach to parse this in Java? 在Java中解析这个问题的最佳方法是什么? So far I could not found a solution with standard Java libraries, and I don't want to reinvent the wheel. 到目前为止,我找不到标准Java库的解决方案,我不想重新发明轮子。
I've tried with (but it would not work if I put there only query parameters like mine): 我已经尝试过(但是如果我只在那里放置查询参数,那就不行了):
String url = "http://www.example.com/something.html?one=11111&two=22222&three=33333";
List<NameValuePair> params = URLEncodedUtils.parse(new URI(url), "UTF-8");
for (NameValuePair param : params) {
System.out.println(param.getName() + " : " + param.getValue());
}
Why don't you use something like a regex : 为什么不使用像正则表达式这样的东西:
for example like this one ".*\\\\?param1=(.*)¶m2=(.*)¶m3=(.*)$"
this works for your url sample that's why I added the .*\\\\?
例如像这样一个".*\\\\?param1=(.*)¶m2=(.*)¶m3=(.*)$"
这适用于您的网址示例,这就是我添加.*\\\\?
part ;) 部分;)
and this will work for the first sample ( "param1=value1¶m2={"url":"http://somesite.com?someparam=somevalue&someparam1=somevalue1"}¶m3=value3"
--> param1=(.*)¶m2=(.*)¶m3=(.*)$
这将适用于第一个样本( "param1=value1¶m2={"url":"http://somesite.com?someparam=somevalue&someparam1=somevalue1"}¶m3=value3"
- > param1=(.*)¶m2=(.*)¶m3=(.*)$
Of course if your params names aren't also something you don't know about 当然,如果你的params名字也不是你不知道的东西
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