认为这是专门用于Java编程的整个基础架构是非常错误的。使用此语言进行编程的当前文化以及C#©是IDE的整个环境。
我不会否认,将Intellij与Java一起使用非常好! Porco©m,我坚信可以使用Neovim等简单的文本编辑器来使用此语言。
但是,为什么不使用插件在Intellij中激活Neovim模式?
我已经在代码编辑器和IDE中测试了这些插件,并使用功能强大的GUI和徒劳的选项测试,这是让我失望的是IDE的标准映射。要使用IDE的全部功能,有必要配置与NeoVim一起使用的所有标准映射以及图案映射未涵盖的功能。
当我喜欢Neovim时,我决定将其配置得更好,以满足使用它来编程Java。
你需要什么
- Nevovi 0.7+
- jdtls(语言服务器标准日食)
安装插件
开始,首先必须安装包装。我在大多数配置中都使用月亮:
git clone --depth 1 https://github.com/wbthomason/packer.nvim\
~/.local/share/nvim/site/pack/packer/start/packer.nvim
安装包装器后,让我们首先安装插件。在我的配置中,我创建一个lua/plugins.lua
文件并在我的koud1上执行它:
require("plugins")
在plugins.lua
文件中,我将实例化包裹,并将所有必要的插件声明以配置LSP到Java。
-- instancia o Packer
local status, packer = pcall(require, "packer")
if (not status) then
print("Packer is not installed")
return
end
vim.cmd [[packadd packer.nvim]]
-- aqui eu declaro todos os meus plugins
packer.startup(function(use)
use 'wbthomason/packer.nvim' -- necessário
use 'nvim-treesitter/nvim-treesitter' -- syntax highlighting
use 'neovim/nvim-lspconfig' -- provê configurações padrão de lsp
use 'hrsh7th/cmp-nvim-lsp' -- auto complete
use 'hrsh7th/nvim-cmp' -- auto complete
use 'hrsh7th/cmp-buffer' -- auto complete
use 'L3MON4D3/LuaSnip' -- provê snippets
use 'onsails/lspkind.nvim' -- provê ícones para o lsp
use 'mfussenegger/nvim-jdtls' -- plugin com todas as features do jdtls
end)
好!发表此声明后,只需保存文件,重新启动neovim并运行:PackerSync
命令。它将安装并编译已声明的插件。
配置Neovim
下一部分是配置这些插件以正确运行。
由于只有在打开.java
文件时才有必要JDTL,因此建议是为此使用Neovim Filetype。
此插件是本机的,只需创建一个名为Koud5的文件夹,您的Koud1所在,其中我们将创建Koud7:
file
$ mkdir ftplugin
$ cd ftplugin
$ touch java.lua
打开此文件,我们将启动配置。
我们将配置自动完成源的第一件事。在这种情况下,我们只会召集Neovim的cmp_nvim_lsp
默认值。
另一个重要的事情是激活两个通知的动态记录:didChangeWatchedFiles
和didChangeConfiguration
。
local capabilities = require('cmp_nvim_lsp').default_capabilities(vim.lsp.protocol.make_client_capabilities())
capabilities.workspace = {
configuration = true,
didChangeWatchedFiles = {
dynamicRegistration = true
},
didChangeConfiguration = {
dynamicRegistration = true
}
}
我们将配置的下一件事是“保存格式”和keymaps的功能。所有这些都是在函数on_attach中定义的。
local on_attach = function(client, bufnr)
-- Aqui define <Ctrl-x> + <Ctrl-o> para ativar o autocomplete, mas ele irá se ativar quando você digita também
vim.api.nvim_buf_set_option(bufnr, 'omnifunc', "v:lua.vim.lsp.omnifunc")
vim.api.nvim_create_autocmd("BufWritePre", {
group = vim.api.nvim_create_augroup('Format', { clear = true }),
buffer = bufnr,
callback = function()
vim.lsp.buf.format()
end
})
local bufopts = { noremap = true, silent = true, buffer = bufnr }
local opts = { noremap = true, silent = true }
vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
vim.keymap.set('n', '<space>K', vim.lsp.buf.signature_help, bufopts)
vim.keymap.set('n', 'gt', vim.lsp.buf.type_definition, bufopts)
vim.keymap.set('n', '<F2>', vim.lsp.buf.rename, bufopts)
vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, bufopts)
vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
vim.keymap.set('n', '<space>f', vim.lsp.buf.format, bufopts)
vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, opts)
vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts)
vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts)
end
下一部分是定义LSP的更通用配置。
local project_name = vim.fn.fnamemodify(vim.fn.getcwd(), ':p:h:t')
local workspace_dir = "/home/eronads/workspaces/" .. project_name
local config = {
flags = {
allow_incremental_sync = true
},
-- O comando para invocar o lsp. Eu recomendo seguir o caminho abaixo, através do executável em python
cmd = {
'/caminho/para/jdtls',
-- Na pasta do jdtls terá algumas pastas com configurações específicas do OS. Indique este caminho de acordo com seu OS
'-configuration', '/caminho/para/pasta-do-jtdls/config_SEU-OS',
-- Para cada projeto, o lsp cria uma pasta com um workspace. Aqui você irá indicar onde irão ficar essas pastas.
'-data', workspace_dir
},
-- A raiz do seu projeto
root_dir = require("jdtls.setup").find_root({ 'gradlew', '.git', 'mvnw' }),
on_attach = on_attach,
capabilities = capabilities,
-- Outras configurações, recomendável repetir
settings = {
java = {
signatureHelp = { enabled = true },
contentProvider = { preferred = 'fernflower' },
completion = {
-- Se precisar adicionar uma classe para import estático
favoriteStaticMembers = {
"org.hamcrest.MatcherAssert.assertThat",
"org.hamcrest.Matchers.*",
"org.hamcrest.CoreMatchers.*",
"org.junit.jupiter.api.Assertions.*",
"java.util.Objects.requireNonNull",
"java.util.Objects.requireNonNullElse",
"org.mockito.Mockito.*"
},
filteredTypes = {
"com.sun.*",
"io.micrometer.shaded.*",
"java.awt.*",
"jdk.*",
"sun.*",
},
},
sources = {
organizeImports = {
starThreshold = 9999,
staticStarThreshold = 9999,
},
},
codeGeneration = {
-- Instrução para geração de métodos populares
toString = {
template = "${object.className}{${member.name()}=${member.value}, ${otherMembers}}"
},
hashCodeEquals = {
useJava7Objects = true,
},
useBlocks = true,
},
configuration = {
-- Indique aqui as versões de java e as pastas onde se encontram
runtimes = {
{
name = "JavaSE-17",
path = "/caminho/para/pasta/do/java/17.0.7-tem/",
default = true
},
}
},
},
}
}
CMP,LSPKIND和LSP的执行的剩余,它可以执行Padrã£O:
local cmp = require 'cmp';
local lspkind = require 'lspkind'
cmp.setup({
snippet = {
expand = function(args)
require('luasnip').lsp_expand(args.body)
end
},
mapping = cmp.mapping.preset.insert({
['C-Space'] = cmp.mapping.complete(),
['<CR>'] = cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = true }),
}),
sources = cmp.config.sources({
{ name = 'nvim_lsp' },
{ name = 'buffer' },
}),
formatting = {
format = lspkind.cmp_format({
mode = 'symbol', -- show only symbol annotations
maxwidth = 50, -- prevent the popup from showing more than provided characters (e.g 50 will not show more than 50 characters)
ellipsis_char = '...', -- when popup menu exceed maxwidth, the truncated part would show ellipsis_char instead (must define maxwidth first)
-- The function below will be called before any actual modifications from lspkind
-- so that you can provide more controls on popup customization. (See [#30](https://github.com/onsails/lspkind-nvim/pull/30))
before = function(entry, vim_item)
return vim_item
end
})
}
})
require('jdtls').start_or_attach(config)
保存文件。从这里,您的Neovim已经为Java配置了。
最后结果
开始服务:
自动完成操作:
它已经带有一些有助于类和接口创建的片段:
诊断:
代码操作(包括Javeiros的宠儿):
完整配置
我的完整配置在github中。
除了Java的配置外,它还已经配置为:
- 打字稿;
- javascript;
- vue; li>
- react;
- GO;
- PHP.
此外,它还有其他一些插件,可为我提供轻巧的基本配置,用于日常编辑。