IDEA 强大文件对比功能

以你之姓@ 2024-02-22 08:48 66阅读 0赞

### [Intellij IDEA使用教程相关系列 目录][Intellij IDEA_] ###

在写代码的过程中，经常需要比较两个代码文件的内容差异，很多人会想到下载一个文件比较工具来比较，其实idea就有比较的功能，而且非常方便，下面就来介绍下如何使用

步骤：1、新建两个文件CompareFile1.java，CompareFile2.java

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 1][]

步骤2、同时选择刚刚新建的两个文件（选中一个文件，按住ctrl键不放，再选中另一个文件），右击选择compare files

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 2][]

对比：从比较结果的对话框中，可以清楚的看出两个文件的差异，同时也可以对文件做编辑修改

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 3][]

有时候比较的两个文件中，只要空格不一样，文字内容一样，也会出现差异的标注显示。在有文字差异和空格差异同时存在的情况下，会影响视线。这个时候，可以选择过滤空格或者忽略空格

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 4][]

还可以切换成混合的比较视图，选择Unified viewer，效果如下图所示

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 5][]

还有一种情况，我们可以直接与粘贴板里的内容来比较，这样就可以先复制一段文本内容，然后右击需要比较的文件内容，选择compare with clipboard，比较效果与两个文件之间比较差不多（这种用法比较常用）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 6][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 7][]

### 其他文章 ###

技术活，该赏关注+一键三连（点赞，评论，收藏）再看，养成好习惯

最近抽空整理了Intellij IDEA相关系列的文章，下面是idea相关系列的目录，方便查阅。若文章有错误或纰漏，请不吝指正。谢谢！

idea相关系列目录

**目录**

内功心法（常用配置）

酷炫武技（装X）

政治联姻（插件篇）

见招拆招

--------------------

### 内功心法（常用配置） ###

[安装和基本配置][Link 1]

新[安装IDEA][IDEA]推荐设置(先记录目录，有空补上)

[设置成eclipse风格][eclipse]

[Intellij IDEA：统一配置JDK版本][Intellij IDEA_JDK]

[编码统一UTF-8][UTF-8]

[设置黑色主题，界面字体大小以及内容字体大小][Link 2]

[IDEA类和方法注释模板设置（非常详细）][IDEA 1]

[idea设置live template代码模板][idea_live template]

[IDEA全局替换快捷键][IDEA 2]

[IDEA 设置显示：内存的使用情况和内存回收][IDEA 3]

[Intellj IDEA 新开项目设置默认maven版本][Intellj IDEA _maven]

[带你深入了解IDEA的Project Structure][IDEA_Project Structure]

[Intellj IDEA 设置默认maven版本][Intellj IDEA _maven 1]

[Intellj IDEA 设置默认maven版本（适用于2020版本以上）][Intellj IDEA _maven_2020]

[IDEA 热部署太热情不好（失去焦点就热部署）][IDEA 4]

[IDEA2020-2配置git，并从远程仓库获取代码分支][IDEA2020-2_git]

### 酷炫武技（装X） ###

[Idea开发环境 maven项目在tomcat里运行][Idea_ maven_tomcat]

[Intellij IDEA使用Debug攻略][Intellij IDEA_Debug]

[IDEA（2021）最全常用快捷键《必须收藏》][IDEA_2021]

[intelliJ IDEA 自动优化导入包][intelliJ IDEA]

[IDEA 强大文件对比功能][IDEA 5]

[IDEA 误删文件恢复][IDEA 6]

[Intellij IDEA 强大的搜索能力][Intellij IDEA]

[clean和install Maven项目][clean_install Maven]

[idea TODO功能使用][idea TODO]

[IDEA terminal终端使用][IDEA terminal]

[intellij idea中如何快速找到父类方法][intellij idea]

[intellij idea生成JavaDoc][intellij idea_JavaDoc]

[intellij idea中快速抽取方法][intellij idea 1]

[Intellij IDEA查看maven所有jar包依赖关系][Intellij IDEA_maven_jar]

[IDEA快速恢复开发：导出配置和导入配置操作][IDEA 7]

[Intellij IDEA和eclipse代码格式一致的商业解决方案][Intellij IDEA_eclipse]

[Intellij IDEA 查看所有断点][Intellij IDEA 1]

[Intellij IDEA 默认打开上次项目设置][Intellij IDEA 2]

[IDEA连接Mysql数据库(JAVA 小虚竹)][IDEA_Mysql_JAVA]

### 政治联姻（插件篇） ###

[IDEA Lombok插件的安装与使用,生成get方法和set方法][IDEA Lombok_get_set]

[IDEA设置酷炫界面透明度-Background Image Plus插件][IDEA_-Background Image Plus]

[IDEA/eclipse集成阿里巴巴Java开发规约插件][IDEA_eclipse_Java]

[idea 懒人神器 保存自动格式化 Save Action插件][idea _ _ Save Action]

### 见招拆招 ###

[IDEA 出现问题：PSI and index do not match 解决方案][IDEA _PSI and index do not match]

[IDEA 出现问题：Error:java: Compilation failed: internal java compiler error解决方案][IDEA _Error_java_ Compilation failed_ internal java compiler error]

[IDEA 出现问题：pom.xml提示Element connectors is not allowed here 解决方案][IDEA _pom.xml_Element connectors is not allowed here]

[IDEA 出现问题：出现private field ‘xxx’ is never assigned警告解决方案][IDEA _private field _xxx_ is never assigned]

[IDEA 出现问题： 方法注释在引用此方法时查看不到解决方案][IDEA _]

[IDEA 出现问题：IDEA Shift+shift 万能搜索你也有失效的时候][IDEA _IDEA Shift_shift]

[IDEA出现问题：\*.properties文件中文乱码解决方案][IDEA_.properties]

[IDEA出现问题：Received fatal alert: protocol\_version 解决方案][IDEA_Received fatal alert_ protocol_version]

[IDEA java版本降级编译,解决JDK版本导致Unsupported major.minor version 52.0 error][IDEA java_JDK_Unsupported major.minor version 52.0 error]

[IDEA出现问题：Idea中右边的maven projects窗口找不到解决方案][IDEA_Idea_maven projects]

[IDEA出现问题：Unable to save settings: Failed to save settings. Please restart IntelliJ IDEA解决方案][IDEA_Unable to save settings_ Failed to save settings. Please restart IntelliJ IDEA]

[IDEA出现问题：idea启动tomcat 很慢解决方案][IDEA_idea_tomcat]

[IDEA出现问题：idea启动提示 failed to create jvm: error code -1 jvm path 很慢解决方案][IDEA_idea_ failed to create jvm_ error code -1 jvm path]

[IDEA出现问题：修改jsp页面tomcat不生效解决方案][IDEA_jsp_tomcat]

[IDEA 出现问题：Error running，Command line is too long. Shorten command line解决方案][IDEA _Error running_Command line is too long. Shorten command line]

[IDEA 出现问题：一直Build Output，cpu爆炸，出现错误点击进去又显示正常][IDEA _Build Output_cpu]

[IDEA出现问题：断点不可用 No executable code found][IDEA_ No executable code found]

[IDEA 出现问题：报错unable to establish loopback connection解决方案][IDEA _unable to establish loopback connection]

[IDEA 出现问题：IDEA看不到编译后的target文件解决方案][IDEA _IDEA_target]

[IDEA 出现问题：严重占用CPU 长时间在90~100%解决方案][IDEA _CPU _90_100]

[IDEA 出现问题：debugger启动tomcat 报错Address already in use: NET\_Bind 解决方案][IDEA _debugger_tomcat _Address already in use_ NET_Bind]

[IDEA 出现问题：idea 类明明在同一个包，但是无法import导入类][IDEA _idea _import]

[IDEA 出现问题：tomcat热部署没反应解决方案][IDEA _tomcat]

[IDEA 出现问题： Git 服务器变更，如何修改服务器地址][IDEA _ Git]

### [IDEA 出现问题： IDEA不能搜索插件解决方案][IDEA _ IDEA] ###

[Intellij IDEA_]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86597433
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/22/e5744e9f415945e98e85987d2070166f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/22/5136768d86484ee6a53cc54e638f85c2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/22/e304dbacdd884355922a9661841b6846.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 3]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/22/93556fc6a2c64687bf425a1968c6812e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 4]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/22/40de0ccb3dc0408e986f41170dafc698.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 5]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/22/5c1a7e03b42d48b28cc2a705172bf67d.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 6]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/22/ce4aca2fd34d469da77d39c076b62255.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NoaV9ob25nX2ZlaV9oZWk_size_16_color_FFFFFF_t_70 7]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/22/dea7e555f9d64ee480519134af9ea044.png
[Link 1]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86592056
[IDEA]: https://so.csdn.net/so/search?q=%E5%AE%89%E8%A3%85IDEA&spm=1001.2101.3001.7020
[eclipse]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86594651
[Intellij IDEA_JDK]: https://xiaoxuzhu.blog.csdn.net/article/details/121239579
[UTF-8]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86595513
[Link 2]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86596801
[IDEA 1]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86606095
[idea_live template]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86607823
[IDEA 2]: https://blog.csdn.net/shi_hong_fei_hei/article/details/88806147
[IDEA 3]: https://blog.csdn.net/shi_hong_fei_hei/article/details/89384623
[Intellj IDEA _maven]: https://blog.csdn.net/shi_hong_fei_hei/article/details/110878211
[IDEA_Project Structure]: https://blog.csdn.net/shi_hong_fei_hei/article/details/112635612
[Intellj IDEA _maven 1]: https://blog.csdn.net/shi_hong_fei_hei/article/details/112637385
[Intellj IDEA _maven_2020]: https://blog.csdn.net/shi_hong_fei_hei/article/details/112637093
[IDEA 4]: https://blog.csdn.net/shi_hong_fei_hei/article/details/114293164
[IDEA2020-2_git]: https://blog.csdn.net/shi_hong_fei_hei/article/details/114293388
[Idea_ maven_tomcat]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86598582
[Intellij IDEA_Debug]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86599709
[IDEA_2021]: https://xiaoxuzhu.blog.csdn.net/article/details/119301508
[intelliJ IDEA]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86600021
[IDEA 5]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86600903
[IDEA 6]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86605229
[Intellij IDEA]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86605560
[clean_install Maven]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86597999
[idea TODO]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86606414
[IDEA terminal]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86607044
[intellij idea]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86608120
[intellij idea_JavaDoc]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86608212
[intellij idea 1]: https://blog.csdn.net/shi_hong_fei_hei/article/details/86608257
[Intellij IDEA_maven_jar]: https://blog.csdn.net/shi_hong_fei_hei/article/details/87920689
[IDEA 7]: https://blog.csdn.net/shi_hong_fei_hei/article/details/89361344
[Intellij IDEA_eclipse]: https://blog.csdn.net/shi_hong_fei_hei/article/details/106083880
[Intellij IDEA 1]: https://blog.csdn.net/shi_hong_fei_hei/article/details/110238826
[Intellij IDEA 2]: https://blog.csdn.net/shi_hong_fei_hei/article/details/112636766
[IDEA_Mysql_JAVA]: https://blog.csdn.net/shi_hong_fei_hei/article/details/122245264
[IDEA Lombok_get_set]: https://blog.csdn.net/shi_hong_fei_hei/article/details/89644298
[IDEA_-Background Image Plus]: https://blog.csdn.net/shi_hong_fei_hei/article/details/100175502
[IDEA_eclipse_Java]: https://blog.csdn.net/shi_hong_fei_hei/article/details/101219539
[idea _ _ Save Action]: https://blog.csdn.net/shi_hong_fei_hei/article/details/106084277
[IDEA _PSI and index do not match]: https://blog.csdn.net/shi_hong_fei_hei/article/details/87918055
[IDEA _Error_java_ Compilation failed_ internal java compiler error]: https://blog.csdn.net/shi_hong_fei_hei/article/details/87918305
[IDEA _pom.xml_Element connectors is not allowed here]: https://blog.csdn.net/shi_hong_fei_hei/article/details/87972223
[IDEA _private field _xxx_ is never assigned]: https://blog.csdn.net/shi_hong_fei_hei/article/details/88814070
[IDEA _]: https://blog.csdn.net/shi_hong_fei_hei/article/details/89216939
[IDEA _IDEA Shift_shift]: https://blog.csdn.net/shi_hong_fei_hei/article/details/98867745
[IDEA_.properties]: https://blog.csdn.net/shi_hong_fei_hei/article/details/103015706
[IDEA_Received fatal alert_ protocol_version]: https://blog.csdn.net/shi_hong_fei_hei/article/details/103015833
[IDEA java_JDK_Unsupported major.minor version 52.0 error]: https://blog.csdn.net/shi_hong_fei_hei/article/details/89483386
[IDEA_Idea_maven projects]: https://blog.csdn.net/shi_hong_fei_hei/article/details/104499062
[IDEA_Unable to save settings_ Failed to save settings. Please restart IntelliJ IDEA]: https://blog.csdn.net/shi_hong_fei_hei/article/details/103282803
[IDEA_idea_tomcat]: https://blog.csdn.net/shi_hong_fei_hei/article/details/107004654
[IDEA_idea_ failed to create jvm_ error code -1 jvm path]: https://blog.csdn.net/shi_hong_fei_hei/article/details/107189665
[IDEA_jsp_tomcat]: https://blog.csdn.net/shi_hong_fei_hei/article/details/109297896
[IDEA _Error running_Command line is too long. Shorten command line]: https://blog.csdn.net/shi_hong_fei_hei/article/details/112634586
[IDEA _Build Output_cpu]: https://blog.csdn.net/shi_hong_fei_hei/article/details/112634373
[IDEA_ No executable code found]: https://blog.csdn.net/shi_hong_fei_hei/article/details/112636374
[IDEA _unable to establish loopback connection]: https://blog.csdn.net/shi_hong_fei_hei/article/details/113608432
[IDEA _IDEA_target]: https://blog.csdn.net/shi_hong_fei_hei/article/details/115838126
[IDEA _CPU _90_100]: https://blog.csdn.net/shi_hong_fei_hei/article/details/115965823
[IDEA _debugger_tomcat _Address already in use_ NET_Bind]: https://blog.csdn.net/shi_hong_fei_hei/article/details/116269029
[IDEA _idea _import]: https://xiaoxuzhu.blog.csdn.net/article/details/119301387
[IDEA _tomcat]: https://xiaoxuzhu.blog.csdn.net/article/details/120295822
[IDEA _ Git]: https://xiaoxuzhu.blog.csdn.net/article/details/122245146
[IDEA _ IDEA]: https://blog.csdn.net/shi_hong_fei_hei/article/details/130253535