How to format code in idea

Idea method to format the code: 1. Directly use the shortcut key "Ctrl Alt L" to format the code. 2. Open the idea, click "File" - "Settings" - "Plugins", search and install "eclipse code formatter"; then import the configuration file "eclipse-codestyle.xml"; finally use the shortcut key "Ctrl Shift Alt L" "Format code.

The operating environment of this tutorial: windows10 system, IDEA2020.1.3, Dell G3 computer.

IDEA, the full name of IntelliJ IDEA, is an integrated development environment for the Java programming language. IntelliJ is recognized as the best Java development tool in the industry, especially in intelligent code assistants, automatic code prompts, refactoring, JavaEE support, various version tools (git, svn, etc.), JUnit, CVS integration, code analysis, innovative The functions in GUI design and other aspects can be said to be extraordinary. IDEA is a product of JetBrains, a company headquartered in Prague, the capital of the Czech Republic. Its developers are mainly Eastern European programmers who are known for their rigor. Its flagship version also supports HTML, CSS, PHP, MySQL, Python, etc. The free version only supports a few languages ​​such as Java and Kotlin.

idea method of formatting code

Method 1: Native method

In IDEA, you can use the Ctrl Alt L shortcut key to format code.

Use the Ctrl Alt L shortcut key to format the code. At this time, the code format will become very neat.

Method 2: Using the plug-in

Have you ever encountered the shortcut key "Ctrl Alt L" There is almost no change in the final code, and the formatted result does not achieve the expected effect. You might as well try configuring the code formatting template.

1. Idea formatting template configuration steps

1. Install plug-in: EclipseCodeFormatter

Alibaba configuration file is only for eclipse , so you need to install the EclipseFormatter plug-in

before importing the configuration file. Open the idea editor: File->Settings->Plugins, and search for eclipse code formatter.

This is the installed page

2. Import the configuration fileeclipse-codestyle.xml

Do not close the page after completing the above steps. Find the following Other Settings->Adapter eclipse code formatter path and follow the image location to find the eclipse-codestyle.xml file saved. Location, just add it ( put the file after the article)

## 2. Formatting code Only format the code I modified and not the unmodified code

Shortcut key: Ctrl Shift Alt L

By default, the Scope option is Whole file, which is to format the current window All code
• Only changes uncommitted to VCS means that only the code I modified will be formatted, and the code I have not modified will not be formatted
• We can also set up to trigger code formatting when automatically saving. Operation method: Set in File->Settings->Tools->Actions on Save.
• Note that after checking Reformat code, the Whole file should be changed to Changed lines
  

##eclipse- The codestyle.xml file is self-pickup, remember to click three times to connect 0.0

<?xml  version="1.0" encoding="UTF-8" standalone="no"?>
<profiles>
    <profile>
        <!--可变参数的... Idea没有对应的配置项，强制insert-->
        <setting></setting>
        <!--枚举值之间 Idea没有对应的配置项，强制insert-->
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_invocation_arguments=Java:SPACE_BEFORE_COMMA-->
        <!--org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_parameters=Java:SPACE_BEFORE_COMMA
        由于IDEA只有一个SPACE_BEFORE_COMMA选项，所以统一设置 insert_space_before_comma 为 do not insert
        -->
        <setting></setting>
        <setting></setting>

        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <!--insert_space_before_comma end-->

        <!--org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments=Java:SPACE_AFTER_COMMA_IN_TYPE_ARGUMENTS-->
        <setting></setting>
        <!--IDEA只有一个配置项SPACE_AFTER_COMMA，insert_space_after_comma*统一设置成insert-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <!--insert_space_after_comma end-->


        <!--org.eclipse.jdt.core.formatter.insert_space_before_colon_in_conditional=Java:SPACE_BEFORE_COLON-->
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_after_colon_in_conditional=Java:SPACE_AFTER_COLON-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--IDEA不支持配置，默认do not insert-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <!--这个在Eclipse也没有找到配置的地方-->
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_before_semicolon=Java:SPACE_BEFORE_SEMICOLON
        程序导入的时候强制将SPACE_BEFORE_SEMICOLON设置为false
        -->
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--SPACE_AFTER_SEMICOLON=true-->
        <setting></setting>
        <setting></setting>

        <!--IDEA不支持配置,do not insert-->
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--IDEA不支持，使用默认-->
        <setting></setting>
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_after_binary_operator=Java:<Programmatic>-->
        <setting></setting>
        <setting></setting>

        <!--IDEA不支持配置，使用如下值，两者对应-->
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <setting></setting>
        <setting></setting>

        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--Java:SPACE_BEFORE_OPENING_ANGLE_BRACKET_IN_TYPE_PARAMETER-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_arguments=Java:SPACE_AFTER_CLOSING_ANGLE_BRACKET_IN_TYPE_ARGUMENT-->
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_after_closing_brace_in_block=Java:<Programmatic>-->
        <setting></setting>

        <!--IDEA使用了对应的配置：Java:SPACE_WITHIN_ARRAY_INITIALIZER_BRACES，但感觉不太好，IDEA默认不插入，Eclipse也使用不插入-->
        <setting></setting>

        <!--use default insert-->
        <setting></setting>

        <!--use default do not insert -->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>


        <!--use default insert-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>


        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_switch=Java:SPACE_BEFORE_SWITCH_LBRACE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration=Java:SPACE_BEFORE_CLASS_LBRACE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_block=Java:<Programmatic>-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer=Java:SPACE_BEFORE_ARRAY_INITIALIZER_LBRACE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration=Java:SPACE_BEFORE_METHOD_LBRACE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_after_question_in_conditional=Java:SPACE_AFTER_QUEST-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional=Java:SPACE_BEFORE_QUEST-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation=Java:SPACE_BEFORE_ANOTATION_PARAMETER_LIST-->
        <setting></setting>

        <!--use default do not insert-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <setting></setting>
        <setting></setting>


        <!--下面两个对应IDEA中的一个配置Java:SPACE_AROUND_ASSIGNMENT_OPERATORS，使用insert-->
        <setting></setting>
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch=Java:SPACE_BEFORE_CATCH_PARENTHESES-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_invocation=Java:SPACE_BEFORE_METHOD_CALL_PARENTHESES-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_try=Java:SPACE_BEFORE_TRY_PARENTHESES-->
        <setting></setting>

        <!--下面两个对应IDEA中的一个配置Java:SPACE_AROUND_UNARY_OPERATOR，使用do not insert-->
        <setting></setting>
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_if=Java:SPACE_BEFORE_IF_PARENTHESES-->
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_while=Java:SPACE_BEFORE_WHILE_PARENTHESES-->
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_after_closing_paren_in_cast=Java:SPACE_AFTER_TYPE_CAST-->
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration=Java:SPACE_BEFORE_METHOD_PARENTHESES-->
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for=Java:SPACE_BEFORE_FOR_PARENTHESES-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized=Java:SPACE_BEFORE_SYNCHRONIZED_PARENTHESES-->
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch=Java:SPACE_BEFORE_SWITCH_PARENTHESES-->
        <setting></setting>

        <!--下面两个对应IDEA中的一个配置Java:SPACE_AROUND_LAMBDA_ARROW，使用insert-->
        <setting></setting>
        <setting></setting>
        <!--SPACE_WITHIN_EMPTY_ARRAY_INITIALIZER_BRACES-->
        <setting></setting>

        <!--Idea -> Wrapping And Braces -> Simple classes in one line -->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <!--Idea -> Wrapping And Braces -> Simple method in one line -->
        <setting></setting>
        <!--因为Idea不支持配置，所以设置为 Idea默认值-->

        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <!--Idea可以通过Wrap Always实现 TODO-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <!--Idea -> Wrapping And Braces -> Simple block in one line -> do not select -->
        <setting></setting>

        <!--Idea -> Wrapping And Braces -> try statement -> catch.... (Java:CATCH_ON_NEW_LINE)-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_new_line_at_end_of_file_if_missing=<Programmatic>-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer=Java:ARRAY_INITIALIZER_RBRACE_ON_NEXT_LINE-->
        <setting></setting>
        <!--#org.eclipse.jdt.core.formatter.insert_new_line_after_opening_brace_in_array_initializer=Java:ARRAY_INITIALIZER_LBRACE_ON_NEXT_LINE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_new_line_before_else_in_if_statement=Java:ELSE_ON_NEW_LINE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_new_line_before_while_in_do_statement=Java:WHILE_ON_NEW_LINE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement=Java:FINALLY_ON_NEW_LINE-->
        <setting></setting>

        <!--comment start-->
        <setting></setting>
        <!--ENABLE_JAVADOC_FORMATTING-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_javadoc_comment=<Programmatic>-->
        <setting></setting>
        <!--IDEA无对应设置，所以关闭对block comment的格式化 -->
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column=Java:KEEP_FIRST_COLUMN_COMMENT-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.use_on_off_tags=FORMATTER_TAGS_ENABLED-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.disabling_tag=FORMATTER_OFF_TAG-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.enabling_tag=FORMATTER_ON_TAG-->
        <setting></setting>

        <!--下面的没有IDEA对应项，在代码里面对IDEA中使用默认值即可,LINE_COMMENT_AT_FIRST_COLUMN BLOCK_COMMENT_AT_FIRST_COLUMN设置为false-->
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <setting></setting>


        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <setting></setting>
        <setting></setting>

        <setting></setting>
        <!--和IDEA保持一致，注释换行-->
        <setting></setting>
        <setting></setting>


        <!--comment end-->

        <!--org.eclipse.jdt.core.formatter.blank_lines_after_imports=Java:BLANK_LINES_AFTER_IMPORTS-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.blank_lines_before_imports=Java:BLANK_LINES_BEFORE_IMPORTS-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.blank_lines_after_package=Java:BLANK_LINES_AFTER_PACKAGE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.blank_lines_between_type_declarations=Java:BLANK_LINES_AROUND_CLASS-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body=Java:BLANK_LINES_BEFORE_METHOD_BODY-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.blank_lines_before_first_class_body_declaration=Java:<Programmatic>-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.blank_lines_before_field=Java:BLANK_LINES_AROUND_FIELD-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.blank_lines_before_method=Java:BLANK_LINES_AROUND_METHOD-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.blank_lines_before_package=Java:BLANK_LINES_BEFORE_PACKAGE-->
        <setting></setting>

        <!--下面IDEA没有对应设置，使用对应值即可-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.indentation.size=Java:IndentOptions:INDENT_SIZE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.continuation_indentation=Java:IndentOptions:<Programmatic>-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_type_header=Java:<Programmatic>-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations=Java:IndentOptions:SMART_TABS-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_switch=Java:INDENT_CASE_FROM_SWITCH-->
        <setting></setting>
        <!--KEEP_INDENTS_ON_EMPTY_LINES-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.tabulation.size=Java:IndentOptions:<Programmatic>-->
        <setting></setting>
        <!--Java:IndentOptions:<Programmatic>-->
        <setting></setting>


        <!--下面IDEA没有对应设置，使用对应值即可-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>


        <!--Java:<Programmatic>-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--下面没有对应的IDEA设置，Eclipse先使用对应值-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <setting></setting>


        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--IDEA默认配置在同一行，Eclipse使用对应值即可-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--Java:BINARY_OPERATION_SIGN_ON_NEXT_LINE-->
        <setting></setting>

        <!--ASSIGNMENT_WRAP 需要设置为 WRAP_AS_NEEDED  WRAP_AS_NEEDED . Add in jdt.core-3.12，it&#39;s not work in previous version -->
        <setting></setting>

        <!--IDEA无配置项，Eclipse使用对应值即可-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line=Java:KEEP_CONTROL_STATEMENT_IN_ONE_LINE-->
        <setting></setting>
        <!--org.eclipse.jdt.core.formatter.compact_else_if=Java:SPECIAL_ELSE_IF_TREATMENT-->
        <setting></setting>
        <!--Java:ALIGN_GROUP_FIELD_DECLARATIONS-->
        <setting></setting>
        <!--Java:<Programmatic>-->
        <setting></setting>
        <setting></setting>

        <!--统一为end_of_lint，IDEA默认一致-->
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>
        <setting></setting>


        <!--        <setting id="org.eclipse.jdt.core.compiler.source" value="1.8"/>
                <setting id="org.eclipse.jdt.core.compiler.compliance" value="1.8"/>
                <setting id="org.eclipse.jdt.core.compiler.codegen.targetPlatform" value="1.8"/>
                        <setting id="org.eclipse.jdt.core.compiler.problem.enumIdentifier" value="error"/>
                                <setting id="org.eclipse.jdt.core.compiler.problem.assertIdentifier" value="error"/>
                                        <setting id="org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode" value="enabled"/>
                -->
        <!--Java:KEEP_SIMPLE_BLOCKS_IN_ONE_LINE-->
        <setting></setting>

        <!--Java:CLASS_BRACE_STYLE，统一使用end_of_line TODO-->
        <setting></setting>
        <setting></setting>

        <!--org.eclipse.jdt.core.formatter.lineSplit=RIGHT_MARGIN-->
        <setting></setting>
    </profile>
</profiles>

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