prettier-plugin-jsp

1.0.13 verified Sat Apr 25 auth: no javascript

A Prettier plugin for formatting Java Server Pages (JSP) files. Current stable version: 1.0.13. Released occasionally with bug fixes. Supports .jsp and .tag files. Integrates with Prettier's plugin system and can be used via CLI or VSCode. Alternative to manual JSP formatting.

Common errors

error Cannot find module 'prettier-plugin-jsp' ↓

cause The plugin is not installed or Prettier cannot resolve it.

fix

Run 'npm install --save-dev prettier-plugin-jsp' and ensure node_modules includes it.

error Error: Couldn't resolve plugin "prettier-plugin-jsp" (No plugins loaded) ↓

cause Plugin name is incorrect or missing in Prettier config.

fix

In .prettierrc, set '"plugins": ["prettier-plugin-jsp"]' exactly.

error The JSP file is not being formatted even after installing the plugin ↓

cause File association is missing in VSCode or CLI not targeting the correct file type.

fix

Add '*.jsp' to files.associations in VSCode; for CLI, explicitly pass the file.

Warnings

gotcha Plugin requires Prettier version ^2.7.1; incompatible with Prettier v3. ↓

fix Use Prettier v2.x or wait for plugin update for v3.

gotcha File associations must be set in VSCode for .tag files to be recognized as JSP. ↓

fix Add '"*.tag": "jsp"' to files.associations in settings.json.

deprecated Prettier v2 is in maintenance mode; upgrade to v3 when plugin supports it. ↓

fix Monitor plugin releases for v3 compatibility.

gotcha Plugin may not correctly parse complex JSP expressions (e.g., nested tags or scriptlets). ↓

fix Manually review formatted output for any parsing errors.

gotcha Formatting might break on large JSP files due to Prettier's single-threaded nature. ↓

fix Use incremental formatting or split files if issues occur.

Install

npm install prettier-plugin-jsp

yarn add prettier-plugin-jsp

pnpm add prettier-plugin-jsp

Imports

default

wrong

import prettierPluginJsp from 'prettier-plugin-jsp'

correct

module.exports = { plugins: ['prettier-plugin-jsp'] }

Plugin is loaded via Prettier config, not directly imported as a module.

plugins array
wrong
```
"plugins": ["@prettier/plugin-jsp"]
```
correct
```
"plugins": ["prettier-plugin-jsp"]
```
The plugin name in the plugins array must exactly match the package name.

CLI usage

wrong

npx prettier --write *.jsp --plugin prettier-plugin-jsp

correct

npx prettier --write --plugin=prettier-plugin-jsp *.jsp

The --plugin flag must be positioned before file arguments.

Quickstart

Installs the plugin, configures Prettier to use it, and formats a JSP file via CLI.

// Install Prettier and the plugin
npm install --save-dev prettier prettier-plugin-jsp

// Create .prettierrc
cat > .prettierrc <<EOF
{
  "plugins": ["prettier-plugin-jsp"]
}
EOF

// Format a JSP file
npx prettier --write index.jsp