webp-server-java

This is a Server based on Java, which allows you to serve WebP images on the fly.

And you can easily integrate into your project.

e.g When you visit https://a.com/1.jpg，it will serve as image/webp without changing the URL.

For Safari and Opera users, the original image will be used.

Modified from n0vad3v/webp_server

• Add a simple feature that you can config more image directory

• And you can easily integrate into your Java project.

Integrate into your project

You need newer version than 0.3

1.Import this package by gradle or maven

if you use gradle

add to build.gralde

implementation 'moe.keshane:webp-server-java:{version}'

if you use maven

add to pom.xml

<dependency>
  <groupId>moe.keshane</groupId>
  <artifactId>webp-server-java</artifactId>
  <version>{version}</version>
</dependency>

2. Initializing webp-server-java

To initial a server you need to create a WebpServerConfig object.

Two params of WebpServerConfig are Map<String,String> imgMap,List<String> allowedTypes.

imaMap is a map of request uri and image file path like

Map<String,String> imgMap = new HashMap<>();
map.put("/i","/home/ubuntu/pic");
map.put("/img","/home/ubuntu/pic2");
map.put("/","/home/ubuntu/pic1");

allowedTypes is a list of allowed image extension name like

List<String> allowedTypes = Arrays.asList("jpg","png","jpeg","webp");

and initial the server

WebpServerConfig webpConfig = new WebpServerConfig(imgMap,allowedTypes);
WebpServer server = WebpServer.init(webpConfig);

3. Get webp file or origin file

Server would return a webp image file if is not safari or origin image file if is safari.

The param is HttpServletRequest object.

File file = server.request(request);

Run as server

Create a 'config.json' file

If you are serving images at https://example.com/pics/tsuki.jpg and your files are at /var/www/image/pics/tsuki.jpg, then imgMap shall be {"/pics":"/var/www/image/pics/tsuki.jpg"}.

1. Download or build the jar package

Download the webp-server from release page.

2. config file

Create a config.json

{
  "host": "127.0.0.1",
  "port": 3333,
  "imgMap": {
    "/i": "/home/ubuntu/pic",
    "/img": "/home/ubuntu/pic2",
    "/": "/home/pic1"
  },
  "allowedTypes": ["jpg","png","jpeg","webp"]
}

You must provide a config file to run this server

3. Run

Run this Jar package like

java -jar webp-server-java.jar /path/to/your/config.json

screen or tmux

Use screen or tmux to avoid being terminated. Let's take screen for example

screen -S webp
java -jar webp-server-java.jar /path/to/your/config.json

(Use Ctrl-A-D to detach the screen with webp-server running.)

4. Nginx proxy_pass

Let Nginx to proxy_pass http://localhost:3333/;, and your webp-server is on-the-fly

WordPress example

location ^~ /wp-content/uploads/ {
        proxy_pass http://127.0.0.1:3333;
}

Build your own Jar package

Install jdk8 and clone the repo

then

./gradlew build
./gradlew bootJar

Using project

• qwong/j-webp

• biezhi/webp-io

License

Apache License 2.0