blocks|key|790442|text|HttpServletRequest对象已经提供了一个参数映射。有关更多详细信息，请参阅request.getParameterMap()。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|790443|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/cd/E17802_01/products/products/servlet/2.3/javadoc/javax/servlet/ServletRequest.html#getParameterMap()^0|18|P|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

The HttpServletRequest object provides a map of parameters already. See <a href="http://docs.oracle.com/cd/E17802_01/products/products/servlet/2.3/javadoc/javax/servlet/ServletRequest.html#getParameterMap()" rel="noreferrer">request.getParameterMap()</a> for more details.

blocks|key|790481|text|在您的控制器方法中使用org.springframework.web.context.request.WebRequest作为参数，它提供了方法getParameterMap()，优点是您的应用程序不需要严格遵守Servlet+API，WebRequest是JavaEE模式上下文对象的一个示例。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|790482|entityMap^0|B|1E|20|H|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Use <code>org.springframework.web.context.request.WebRequest</code> as a parameter in your controller method, it provides the method <code>getParameterMap()</code>, the advantage is that you do not tight your application to the Servlet API, the WebRequest is a example of JavaEE pattern Context Object.

blocks|key|574367|text|您可以简单地使用以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|574368|Map<String,+String[]>+parameters+=+request.getParameterMap();|code-block|syntax|javascript|574369|这应该可以很好地工作|574370|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

you can simply use this:

<pre><code>Map&lt;String, String[]&gt; parameters = request.getParameterMap();
</code></pre>

That should work fine

blocks|key|574546|text|虽然其他答案是正确的，但直接使用HttpServletRequest对象肯定不是"Spring的方式“。如果您熟悉Spring+MVC，那么答案实际上是quite+simple+and+what+you+would+expect。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|574547|@RequestMapping(value+=+{"/search/",+"/search"},+method+=+RequestMethod.GET)
public+String+search(
@RequestParam+Map<String,String>+allRequestParams,+ModelMap+model)+{
+++return+"viewName";
}|code-block|syntax|javascript|574548|entityMap|0|LINK|mutability|MUTABLE|url|http://static.springsource.org/spring/docs/3.2.x/javadoc-api/org/springframework/web/bind/annotation/RequestParam.html^0|24|12|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

While the other answers are correct it certainly is not the "Spring way" to use the HttpServletRequest object directly. The answer is actually <a href="http://static.springsource.org/spring/docs/3.2.x/javadoc-api/org/springframework/web/bind/annotation/RequestParam.html">quite simple and what you would expect</a> if you're familiar with Spring MVC.

<pre><code>@RequestMapping(value = {"/search/", "/search"}, method = RequestMethod.GET)
public String search(
@RequestParam Map&lt;String,String&gt; allRequestParams, ModelMap model) {
 return "viewName";
}
</code></pre>

blocks|key|574571|text|我参加聚会可能会迟到，但据我所知，你需要的是这样的东西：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|574572|for(String+params+:+Collections.list(httpServletRequest.getParameterNames()))+{
++++//+Whatever+you+want+to+do+with+your+map
++++//+Key+:+params
++++//+Value+:+httpServletRequest.getParameter(params)++++++++++++++++
}|code-block|syntax|javascript|574573|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I might be late to the party,
but as per my understanding , you're looking for something like this :

<pre><code>for(String params : Collections.list(httpServletRequest.getParameterNames())) {
 // Whatever you want to do with your map
 // Key : params
 // Value : httpServletRequest.getParameter(params) 
}
</code></pre>

blocks|key|790858|text|查询参数和路径参数之间有根本的区别。它是这样的：www.your_domain?queryparam1=1&queryparam2=2+-查询参数。www.your_domain/path_param1/entity/path_param2+-路径参数。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|790859|令我惊讶的是，在Spring+MVC的世界里，很多人把其中一个混淆为另一个。虽然查询参数更像是搜索的标准，但路径参数很可能唯一地标识资源。话虽如此，这并不意味着您的URI中不能有多个路径参数，因为资源结构可以嵌套。例如，假设您需要特定人员的特定汽车资源：|790860|www.my_site/customer/15/car/2+-寻找第15位客户的第二辆车。|790861|将所有路径参数放入map中的用例是什么？当您查看URI本身时，路径参数没有“键”，映射中的那些键将取自@Mapping注释，例如：|790862|@GetMapping("/booking/{param1}/{param2}")|code-block|syntax|javascript|790863|从HTTP/REST的角度来看，路径参数实际上不能投影到地图上。在我看来，这都是关于Spring的灵活性和他们想要适应任何开发人员的突发奇想。|790864|我永远不会将map用于路径参数，但它对于查询参数可能非常有用。|790865|entityMap^0|O|17|22|1A|0|0|0|T|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|11|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|15|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|16|8|@]|D|@]|E|$O|P]]|$1|Q|3|R|5|6|7|17|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|18|8|@]|D|@]|E|$]]|$1|U|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|V|$]]

There is fundamental difference between query parameters and path parameters. It goes like this:
<code>www.your_domain?queryparam1=1&amp;queryparam2=2</code> - query parameters.
<code>www.your_domain/path_param1/entity/path_param2</code> - path parameters.

What I found surprising is that in Spring MVC world a lot of people confuse one for the other.
While query parameters are more like criteria for a search, path params will most likely uniquely identify a resource. Having said that, it doesn't mean that you can't have multiple path parameters in your URI, because the resource structure can be nested. For example, let's say you need a specific car resource of a specific person:

<code>www.my_site/customer/15/car/2</code> - looking for a second car of a 15th customer.

What would be a usecase to put all path parameters into a map? Path parameters don't have a "key" when you look at a URI itself, those keys inside the map would be taken from your @Mapping annotation, for example:

<pre><code>@GetMapping("/booking/{param1}/{param2}")
</code></pre>

From HTTP/REST perspective path parameters can't be projected onto a map really. It's all about Spring's flexibility and their desire to accommodate any developers whim, in my opinion.

I would never use a map for path parameters, but it can be quite useful for query parameters.

blocks|key|574782|text|@SuppressWarnings("unchecked")
Map<String,String[]>+requestMapper=request.getParameterMap();
JsonObject+jsonObject=new+JsonObject();
for(String+key:requestMapper.keySet()){
++++jsonObject.addProperty(key,+requestMapper.get(key)[0]);
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|574783|所有参数都将存储在jsonObject中。|unstyled|offset|length|style|CODE|574784|entityMap^0|0|9|A|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>@SuppressWarnings("unchecked")
Map&lt;String,String[]&gt; requestMapper=request.getParameterMap();
JsonObject jsonObject=new JsonObject();
for(String key:requestMapper.keySet()){
 jsonObject.addProperty(key, requestMapper.get(key)[0]);
}
</code></pre>

All params will be stored in <code>jsonObject</code>.

Sample URL:

<pre><code>../search/?attr1=value1&amp;attr2=value2&amp;attr4=value4
</code></pre>

I do not know the names of attr1, att2, and attr4.

I would like to be able to do something like that (or similar, don't care, just as long as I have access to the Map of request param name -> value:

<pre><code>@RequestMapping(value = "/search/{parameters}", method = RequestMethod.GET)
public void search(HttpServletRequest request, 
@PathVariable Map&lt;String,String&gt; allRequestParams, ModelMap model)
throws Exception {//TODO: implement}
</code></pre>

How can I achieve this with Spring MVC?

Spring MVC - How to get all request params in a map in Spring controller?

示例URL：../search/?attr1=value1&attr2=value2&attr4=value4我不知道attr1、att2和attr4的名字。我希望能够做这样的事情(或者类似的，我不关心，只要我可以访问请求参数名称->值的映射：@RequestMapping(value = "/search/{para...

问Spring MVC -如何在Spring控制器中获取映射中的所有请求参数？
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