spacevim/docs/cn/layers/lang/java.md
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title description lang
SpaceVim lang#java 模块 这一模块为 Java 开发提供支持,包括代码补全、语法检查、代码格式化等特性。 zh

可用模块 >> lang#java

模块描述

这一模块为 Java 开发提供支持,包括代码补全、语法检查、代码格式化等特性。

功能特性

  • 代码补全
  • 代码格式化
  • 重构
  • 语法检查
  • 交互式编程:需要 java8 的 jshell
  • 调试

启用模块

可通过在配置文件内加入如下配置来启用该模块:

[[layers]]
  name = "lang#java"

模块选项

  • format_on_save: 启用/禁用保存文件时自动格式化,默认的值为 false 可以使用如下配置启用该功能:
    [[layers]]
      name = 'lang#java'
      format_on_save = true
    
  • java_formatter_jar: 设置 谷歌格式化工具 的具体路径。
    [[layers]]
      name = 'lang#java'
      java_formatter_jar = 'path/to/google-java-format.jar'
    
  • java_file_head: 默认的文件头,当新建 Java 文件时自动加入。
    [[layers]]
      name = 'lang#java'
      java_file_head = [
        '/**',
        ' * @author : `fnamemodify(expand("~"), ":t")`',
        ' * @created : `strftime("%Y-%m-%d")`',
        '**/',
        ''
      ]
    

快捷键

导包相关快捷键

模式 快捷键 按键描述
Normal SPC l I 导入所有缺失的类
Normal SPC l R 删除多余的导包
Normal SPC l i 智能导入光标下的类
Insert Ctrl-j I 导入所有缺失的类
Insert Ctrl-j R 删除多余的导包
Insert Ctrl-j i 智能导入光标下的类

代码生成相关快捷键

模式 快捷键 按键描述
Normal SPC l g A generate accessors
Normal/Visual SPC l g s generate setter accessor
Normal/Visual SPC l g g generate getter accessor
Normal/Visual SPC l g a generate setter and getter accessor
Normal SPC l g M generate abstract methods
Insert Ctrl-j s generate setter accessor
Insert Ctrl-j g generate getter accessor
Insert Ctrl-j a generate getter and setter accessor
Normal SPC l g t generate toString function
Normal SPC l g e generate equals and hashcode function
Normal SPC l g c generate constructor
Normal SPC l g C generate default constructor

代码格式化

默认的代码格式化快捷键是 SPC b f,该快捷键由 format 模块定义,同时也可以通过 g = 来对齐整个文档。

为了使 format 模块支持 Java 文件,需要安装 google's formater jar。 同时,需要设置模块选项java_formatter_jar

[[layers]]
  name = 'lang#java'
  java_formatter_jar = 'path/to/google-java-format.jar'

Maven

快捷键 功能描述
SPC l m i Run maven clean install
SPC l m I Run maven install
SPC l m p Run one already goal from list
SPC l m r Run maven goals
SPC l m R Run one maven goal
SPC l m t Run maven test

交互式编程

启动 jshell 交互进程,快捷键为: SPC l s i

将代码传输给 REPL 进程执行:

快捷键 功能描述
SPC l s b 发送整个文件内容至 REPL
SPC l s l 发送当前行内容至 REPL
SPC l s s 发送已选中的内容至 REPL