blocks|key|110332|text|对于问题的第二部分(“放置在web-inf下的jsp文件不会被用户直接访问”)，这是正确的。为了允许用户访问WEB文件夹中的JSP文件，需要在web.xml文件中为每个JSP页面创建servlet和servlet映射条目。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|110333|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For the second part of your question ("jsp files placed under web-inf won't be directly accessible by user") that is correct. To allow users to access JSP files in the WEB-INF folder servlet and servlet-mapping entries need to be made in the web.xml file for each JSP page.

blocks|key|1109818|text|对于Intellij中的JSP调试，必须进行一些配置。Intellij总是允许在JSP行上添加断点这一事实并不一定意味着您已经配置了JSP调试。在下面的文章中，我提到Intellij+8配置，w.r.t。以前的版本需要做类似的操作，因为概念是相同的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1109819|为了启用JSP调试，必须执行两个步骤:在项目中设置web应用程序配置和添加web应用程序服务器配置。|1109820|Web应用程序配置:为了进行JSP调试，您必须在项目结构中有一个“web”方面，指向正确的web.xml文件。根据您所使用的web应用程序结构的类型，Intellij可能会自动检测到facet+(无论如何要检查它做了什么)，或者您可能需要手动添加它。请记住，在“Java构建设置”选项卡中，将其设置为“目录”；如果您不希望重复，一个诀窍就是启用它并指向您已经存在的目录。|1109821|(+web+)应用服务器:转到“编辑配置”，您必须向应用程序服务器添加配置，而不是像任何其他应用程序一样启动web服务器。这样，Intellij将能够拦截JSP调用。在应用程序服务器列表中，应该有默认的Tomcat。在进行此操作之前，一定要安装本地Tomcat，并在添加web应用程序服务器时指出这一点。最后一个技巧是转到“Deployment”选项卡，并选择与您在前一步中配置的相同的方面作为“部署源”。|1109822|如果您想使用另一个web应用程序服务器，同样的配置可以工作，我用最新的Caucho树脂版本进行了测试，调试工作很好(以前的Intellij和树脂组合不起作用)。|1109823|如果在要添加的可用应用服务器列表中没有看到Tomcat，请检查常规Intellij设置窗格中的插件:在最新版本中，越来越多的功能变得“可插拔”，甚至可能禁用非常基本的功能；这个插件称为“Tomcat集成”。|1109824|最后，JSP文件需要处于WEB之下才能进行调试，这肯定不是真的。|1109825|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|S|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|O|$]]

For JSP debugging in Intellij there are some configurations that must be in order. The fact that Intellij always allows you to add a breakpoint on a JSP line does not necessarily imply that you’ve configured JSP debugging. In the following I refer to Intellij 8 configuration, w.r.t. previous versions you will need to do similar operations as the concepts are the same.

In order to enable JSP debugging you must do two steps: set a web application configuration in your project and add a web application server configuration.

Web application Configuration: in order to have JSP debugging, you must have a “web” facet in your project structure, pointing to the correct web.xml file. Depending on the kind of web application structure you are using, the facet may be detected automatically by Intellij (go anyway to check what it has done) or you may have to add it manually. Remember in the “Java EE build settings” tab to set as anable “Create web facet exploded directory”; if you don’t want duplications, a trick is just to enable it and point to your already existing directory.

(Web) Application server: Go to “edit configurations”, there you have to add to configurations an application server, not launch the web server as an application like any other. In this way Intellij will be able to intercept JSP calls. In the list of application servers, you should have the default one, Tomcat. Be sure to have a local Tomcat installation before you do this, and point to that when adding the web application server. The last trick is going to the “Deployment” tab and selecting as “Deployment source” the same facet that you configured in the previous step.

The same configuration works if you want to use another web application server, I tested it with the latest Caucho Resin releases and debugging works fine (it didn’t with the previous Intellij and Resin combinations).

If you don’t see Tomcat in the list of available application servers to add, check the plugins in the general Intellij settings pane: in the latest releases, more and more functionality has become “pluggable”, and even very basic functions may be disabled; this plugin is called “Tomcat integration”.

Finally, it is surely not true that JSP files need to be under WEB-INF to be under debugging.

blocks|key|822093|text|无论如何，你需要在思想上启动Tomcat，而不是从远程Tomcat启动。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|822094|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Anyway, you need to launch the Tomcat in IDEA, not from a remote Tomcat.

blocks|key|822099|text|请确保在tomcat的conf/web.xml+suppressSmap中是而不是，因为IntelliJ的调试器需要对JSR45的支持。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|822100|它应该是这样的：|822101|<init-param>
++<param-name>suppressSmap</param-name>
++<param-value>false</param-value>
</init-param>|code-block|syntax|javascript|822102|来自https://tomcat.apache.org/tomcat-7.0-doc/jasper-howto.html|822103|suppressSmap+-应该禁止生成用于JSR45调试的SMAP信息吗？对或错，默认为假。|blockquote|822104|entityMap|0|LINK|mutability|MUTABLE|url|https://tomcat.apache.org/tomcat-7.0-doc/jasper-howto.html^0|O|C|12|3|0|0|0|2|1M|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|15|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|16|8|@]|D|@$9|17|A|18|1|19]]|E|$]]|$1|O|3|P|5|Q|7|1A|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]]|S|$T|$5|U|V|W|E|$X|Y]]]]

Please make sure, that in you tomcat's conf/web.xml suppressSmap is not enabled as support of JSR45 is required by IntelliJ's debugger.

It should look like this:

<pre><code>&lt;init-param&gt;
 &lt;param-name&gt;suppressSmap&lt;/param-name&gt;
 &lt;param-value&gt;false&lt;/param-value&gt;
&lt;/init-param&gt;
</code></pre>

From <a href="https://tomcat.apache.org/tomcat-7.0-doc/jasper-howto.html" rel="nofollow">https://tomcat.apache.org/tomcat-7.0-doc/jasper-howto.html</a>

<blockquote>
 suppressSmap - Should the generation of SMAP info for JSR45 debugging be suppressed? true or false, default false.
</blockquote>

blocks|key|818070|text|如果使用Intellij调试器，则可以通过在JSP中放置断点并计算表达式this.jspContext.request.getAttribute("attributeName")来获取单个属性的值。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|818071|请注意，这可能返回一个Java对象类型，您可能必须将其转换为正确的类型。另外，如果您启动一个远程Tomcat，这个想法不会击中任何断点，所以您需要在调试模式下从这个想法中启动Tomcat。|818072|entityMap^0|10|1H|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

If you are using the Intellij debugger you can get the value of an individual attribute by putting a breakpoint inside JSP and evaluating the expression <code>this.jspContext.request.getAttribute("attributeName")</code>.

Note that this may return a Java Object type, and you may have to cast it to the correct type. Also if you launch a remote Tomcat the IDEA won't hit any breakpoints, so you need to launch the Tomcat in debug mode from inside the IDEA.

Does anyone know how to debug <code>JSP</code> in IntelliJ IDEA?

When I set breakpoint in my <code>JSP</code> files, those breakpoints never seem to take effect. The debugger never hits them. IDEA seems to think that the breakpoints are valid. I do see a red dot placed to the left of the line where I place my breakpoint.

I read in IntelliJ forum <a href="http://intellij.net/forums/thread.jspa;jsessionid=2B86A25AECC06A4BE3447388882AA79F?messageID=5218405&amp;#5218405" rel="noreferrer">in this post</a> that <code>JSP</code> files need to be under web-inf for debugging to work. 

But then I also read that <code>JSP</code> files placed under web-inf won't be directly accessible by the user.

I am not sure who's really right.

JSP debugging in IntelliJ IDEA

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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有人知道如何调试JSP in IntelliJ IDEA吗？当我在JSP文件中设置断点时，这些断点似乎永远不会生效。调试器从不攻击它们。想法似乎认为断点是有效的。我确实看到一个红色的点放在我放置断点的左边。我在IntelliJ论坛上读到，JSP文件需要在web下调试才能工作。但我也读到，放置在web下的JSP文件不会被...

问IntelliJ IDEA中的JSP调试
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