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145 lines
5.6 KiB
Markdown
145 lines
5.6 KiB
Markdown
---
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title: "Use Vim as a Java IDE"
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categories: tutorials
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excerpt: "I am a vimmer and a java developer. Here are some useful plugins for developing java in vim/neovim."
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redirect_from: "/2017/02/11/use-vim-as-a-java-ide.html"
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type: BlogPosting
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comments: true
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---
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# [Blogs](https://spacevim.org/community#blogs) > Use Vim as a Java IDE
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I am a vimmer and a java developer. Here are some useful plugins for developing java in vim/neovim.
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## Project manager
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1. [unite](https://github.com/Shougo/unite.vim) - file and code fuzzy founder.
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The next version of unite is [denite](https://github.com/Shougo/denite.nvim), Denite is a dark powered plugin for Neovim/Vim to unite all interfaces.
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The unite or unite.vim plug-in can search and display information from arbitrary sources like files, buffers, recently used files or registers. You can run several pre-defined actions on a target displayed in the unite window.
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The difference between unite and similar plug-ins like fuzzyfinder, ctrl-p or ku is that unite provides an integration interface for several sources and you can create new interfaces using unite.
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You can also use unite with [ag](https://github.com/ggreer/the_silver_searcher), that will make searching faster.
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_config unite with ag or other tools support_
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```viml
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if executable('hw')
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" Use hw (highway)
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" https://github.com/tkengo/highway
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let g:unite_source_grep_command = 'hw'
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let g:unite_source_grep_default_opts = '--no-group --no-color'
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let g:unite_source_grep_recursive_opt = ''
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elseif executable('ag')
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" Use ag (the silver searcher)
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" https://github.com/ggreer/the_silver_searcher
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let g:unite_source_grep_command = 'ag'
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let g:unite_source_grep_default_opts =
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\ '-i --line-numbers --nocolor ' .
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\ '--nogroup --hidden --ignore ' .
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\ '''.hg'' --ignore ''.svn'' --ignore' .
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\ ' ''.git'' --ignore ''.bzr'''
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let g:unite_source_grep_recursive_opt = ''
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elseif executable('pt')
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" Use pt (the platinum searcher)
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" https://github.com/monochromegane/the_platinum_searcher
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let g:unite_source_grep_command = 'pt'
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let g:unite_source_grep_default_opts = '--nogroup --nocolor'
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let g:unite_source_grep_recursive_opt = ''
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elseif executable('ack-grep')
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" Use ack
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" http://beyondgrep.com/
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let g:unite_source_grep_command = 'ack-grep'
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let g:unite_source_grep_default_opts =
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\ '-i --no-heading --no-color -k -H'
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let g:unite_source_grep_recursive_opt = ''
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elseif executable('ack')
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let g:unite_source_grep_command = 'ack'
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let g:unite_source_grep_default_opts = '-i --no-heading' .
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\ ' --no-color -k -H'
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let g:unite_source_grep_recursive_opt = ''
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elseif executable('jvgrep')
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" Use jvgrep
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" https://github.com/mattn/jvgrep
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let g:unite_source_grep_command = 'jvgrep'
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let g:unite_source_grep_default_opts =
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\ '-i --exclude ''\.(git|svn|hg|bzr)'''
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let g:unite_source_grep_recursive_opt = '-R'
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elseif executable('beagrep')
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" Use beagrep
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" https://github.com/baohaojun/beagrep
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let g:unite_source_grep_command = 'beagrep'
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endif
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```
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2. [vimfiler](https://github.com/Shougo/vimfiler.vim) - A powerful file explorer implemented in Vim script
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_Use vimfiler as default file explorer_
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> for more information, you should read the documentation of vimfiler.
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```viml
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let g:vimfiler_as_default_explorer = 1
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call vimfiler#custom#profile('default', 'context', {
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\ 'explorer' : 1,
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\ 'winwidth' : 30,
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\ 'winminwidth' : 30,
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\ 'toggle' : 1,
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\ 'columns' : 'type',
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\ 'auto_expand': 1,
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\ 'direction' : 'rightbelow',
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\ 'parent': 0,
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\ 'explorer_columns' : 'type',
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\ 'status' : 1,
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\ 'safe' : 0,
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\ 'split' : 1,
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\ 'hidden': 1,
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\ 'no_quit' : 1,
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\ 'force_hide' : 0,
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\ })
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```
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3. [tagbar](https://github.com/majutsushi/tagbar) - Vim plugin that displays tags in a window, ordered by scope
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## Code formatting
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1. [neoformat](https://github.com/sbdchd/neoformat) - A (Neo)vim plugin for formatting code.
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For formatting java code, you also nEed have [uncrustify](http://astyle.sourceforge.net/) or [astyle](http://astyle.sourceforge.net/) in your PATH.
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BTW, the google's [java formatter](https://github.com/google/google-java-format) also works well with neoformat.
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## Code completion
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1. [javacomplete2](https://github.com/artur-shaik/vim-javacomplete2) - Updated javacomplete plugin for vim
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- Demo
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- Generics demo
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2. [deoplete.nvim](https://github.com/Shougo/deoplete.nvim) - Dark powered asynchronous completion framework for neovim
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3. [neocomplete.vim](https://github.com/Shougo/neocomplete.vim) - Next generation completion framework after neocomplcache
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## Syntax lint
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1. [neomake](https://github.com/neomake/neomake) - Asynchronous linting and make framework for Neovim/Vim
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I am maintainer of javac maker in neomake, the javac maker support maven project, gradle project or eclipse project.
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also you can set the classpath.
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## REPL
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you need to install jdk8 which provide a build-in tools `jshell`, and SpaceVim use the `jshell` as default inferior REPL process:
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