在 Java 中进行 URL 查询字符串操作的好库
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A good library to do URL Query String manipulation in Java
提问by Guillaume
I need to do a few very simple URL manipulations in Java. Like get the value for a parameter in the query, or update it, ... I was expecting to find a simple utility class doing that in the commons-lang package, but no. I know it is a simple problem, but if there is something already written, why do it again ? Do you know of any ?
我需要在 Java 中做一些非常简单的 URL 操作。就像获取查询中参数的值，或更新它，......我期待在 commons-lang 包中找到一个简单的实用程序类，但没有。我知道这是一个简单的问题，但如果已经写了一些东西，为什么还要再写？你知道吗？
I would like to have at least the following capabilities :
我希望至少具有以下功能：
String myUrl = "http://www.example.com/test.html?toto=1&titi=2";
// get the value of a parameter
String parameterValue = UrlUtils.getParameterValue(myUrl, "toto");
Assert.equals(parameterValue, "1");
// update a parameter
String newUrl = UrlUtils.updateParameter(myUrl, "toto", 3);
parameterValue = UrlUtils.getParameterValue(myUrl, "toto");
Assert.equals(parameterValue, "3");
Ideally, it would take care of all encoding related issues, and work with java.net.Url as well as with Strings.
理想情况下，它将处理所有与编码相关的问题，并与 java.net.Url 以及字符串一起使用。
Thanks for your help !
谢谢你的帮助 ！
采纳答案by Vinko Vrsalovic
I think what you want is called a query string parser instead of an url manipulator and here's one: http://ostermiller.org/utils/CGIParser.java.html
我认为你想要的是一个查询字符串解析器而不是一个 url 操纵器，这里是一个：http: //ostermiller.org/utils/CGIParser.java.html
回答by piepera
Apache's httpcomponents library has a URL decoder: http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/client/utils/URLEncodedUtils.html
Apache 的 httpcomponents 库有一个 URL 解码器：http: //hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/client/utils/URLEncodedUtils.html
Httpcomponents is the successor to commons http client.
Httpcomponents 是 commons http 客户端的继承者。
回答by youknowHyman
Indeed has released an efficient Java library for query string and number parsing:
Indeed 发布了一个高效的 Java 库，用于查询字符串和数字解析：
http://engineering.indeed.com/blog/2014/02/efficient-query-string-parsing-util-urlparsing/
http://engineering.indeed.com/blog/2014/02/efficient-query-string-parsing-util-urlparsing/
https://github.com/indeedeng/util/tree/master/urlparsing
https://github.com/indeedeng/util/tree/master/urlparsing
(Disclaimer: I am an engineering director at Indeed.)
（免责声明：我是 Indeed 的工程总监。）
