blocks|key|628712|text|您需要将JPanel添加到滚动窗格，然后将滚动窗格添加到框架。其中一种方法是在创建JScrollPane时使用构造函数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|628713|JPanel+panel+=+new+JPanel();
JScrollPane+scrollPane+=+new+JScrollPane(panel);|code-block|syntax|javascript|628714|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|$]]

You need to add the JPanel to the scroll pane, then add the scrollpane to the frame.
One of the way of doing it is when creating the JScrollPane, with the constructor :

<pre><code>JPanel panel = new JPanel();
JScrollPane scrollPane = new JScrollPane(panel);
</code></pre>

blocks|key|3852324|text|1)您发布的代码导致(JFrame默认实现了BorderLayout，只有一个JComponent可以填充混凝土area或layst添加JComponent)，只有frame.getContentPane().add(Jpane);可以在屏幕上显示|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3852325|2)您必须接受您只能将一个JComponent放入JScrollPane|3852326|3)如果使用了正确的LayoutManager+(不是AbsoluteLayout)，并且在Dimmension的JComponent比来自JScrollPane的JViewport更宽的情况下，JScrollPane可以正常工作|3852327|entityMap^0|B|6|M|C|13|A|1K|4|1W|A|2A|Y|0|D|A|P|B|0|A|D|R|E|1A|A|1L|A|1Y|B|2A|9|2Q|B|0^^$0|@$1|2|3|4|5|6|7|L|8|@$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|13|8|@$9|14|A|15|B|C]|$9|16|A|17|B|C]|$9|18|A|19|B|C]|$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]|$9|1E|A|1F|B|C]|$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|J|3|-4|5|6|7|1I|8|@]|D|@]|E|$]]]|K|$]]

1) code that you posted caused that (<code>JFrame</code> has implemented by default <code>BorderLayout</code>, and there only one <code>JComponent</code> can to fill concrete <code>area</code> or layst added <code>JComponent</code>), only <code>frame.getContentPane().add(Jpane);</code> is possible to dispay on the screen

2) you have to accept that you can put to the <code>JScrollPane</code> only one <code>JComponent</code>

3) <code>JScrollPane</code> works correctly if is there used proper <code>LayoutManager</code> (not <code>AbsoluteLayout</code>) and in the case that <code>Dimmension</code> of <code>JComponent</code> is wider that <code>JViewport</code> from <code>JScrollPane</code>

blocks|key|3852344|text|已经用正确的方法回答了这个问题。我能想到的唯一一件事你可能做错了(因为它不能工作)，那就是你向jframe添加了面板。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3852345|将面板放入滚动窗格时，需要将滚动窗格添加到JFrame，而不是将面板添加到JFrame：|3852346|JPanel+panel+=+new+JPanel();
JScrollPane+scrollPane+=+new+JScrollPane(panel);
add(scrollPane);+//+or+if+you+have+a+panel+inside+a+panel,+add+the+pane+to+that+panel.+ie+west.add(scrollPane);|code-block|syntax|javascript|3852347|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This has already been answered with the correct way to do it. The only thing I can think of that you might have done wrong (since it's not working), is that you're adding the panels to the jframe.

When you put a panel inside a scrollpane, you need to add the scrollpane to the JFrame, and not add the panel to the JFrame:

<pre><code>JPanel panel = new JPanel();
JScrollPane scrollPane = new JScrollPane(panel);
add(scrollPane); // or if you have a panel inside a panel, add the pane to that panel. ie west.add(scrollPane);
</code></pre>

blocks|key|2548472|text|你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2548473|+++JPanel+Jpanel+=+new+JPanel();+
+++JScrollPane+Jpane+=+new+JScrollPane(Jpanel);+

+++frame.setLayout(new+BorderLayout());
+++frame.add(Jpane,+BorderLayout.CENTER);|code-block|syntax|javascript|2548474|面板没有显示的原因是因为你的框架不知道把它们放在哪里。它需要一个布局管理器。|2548475|在这里你可以找到一些基本的布局管理器：http://docs.oracle.com/javase/tutorial/uiswing/layout/using.html|offset|length|2548476|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javase/tutorial/uiswing/layout/using.html^0|0|0|0|J|1S|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

What you could do is this:

<pre><code> JPanel Jpanel = new JPanel(); 
 JScrollPane Jpane = new JScrollPane(Jpanel); 

 frame.setLayout(new BorderLayout());
 frame.add(Jpane, BorderLayout.CENTER);
</code></pre>

The reason your panels aren't showing is beacause your frame doesn't know where to put them. It needs a layoutmanager.

Here you can find some basic layoutmanagers:
<a href="http://docs.oracle.com/javase/tutorial/uiswing/layout/using.html" rel="nofollow">http://docs.oracle.com/javase/tutorial/uiswing/layout/using.html</a>

I currently have multiple jpanels on a jframe. I can add all of the jpanels fine to the jframe but when I try and add a jscrollpane, nothing shows up. Essentially I just want a jscrollbar/pane on the jframe so that I can scroll down as the size of the jpanels goes off screen. This is the main code that I used:

<pre><code> JPanel Jpanel = new JPanel();
 JScrollPane Jpane = new JScrollPane();

 frame.getContentPane().add(Jpanel);
 frame.getContentPane().add(Jpane);
</code></pre>

Any help would be appreciated. Thanks

JScrollPane add to frame issue

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。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我目前在一个jframe上有多个jpanel。我可以将所有的jpanel都添加到jframe中，但是当我尝试添加jscrollpane窗格时，什么都没有显示出来。本质上，我只想在jframe上有一个jscrollbar/窗格，这样我就可以在jpanel的大小超出屏幕时向下滚动。这是我使用的主要代码：   JPanel ...

问JScrollPane添加到框架问题
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问JScrollPane添加到框架问题EN