Java生成微信分享海報小工具EasyPoster

前言

微信後臺生成海報一般都是一個模板寫死，然後就完事了，過了不久讓修改個模板，就又要看半天，還要考慮是否重新複製一份改一改，越來越多的重複代碼，全在一個圖片類裏，然後就越來越亂。這兩天用設計模式處理了一下，讓以後修改模板，新增模板更舒服一點。有第三方好用的輕量級的實現，還請留言。感激！！
博客園鏈接

效果圖

簡單註解實現繪製

基於java8 和 lombok 的小輪子

前往github star支持

Maven 引入【github直接clone源碼，更方便定製修改】

<!-- https://mvnrepository.com/artifact/com.github.quaintclever/easyposter -->
<dependency>
    <groupId>com.github.quaintclever</groupId>
    <artifactId>easyposter</artifactId>
    <version>1.2</version>
</dependency>

Gradle

// https://mvnrepository.com/artifact/com.github.quaintclever/easyposter
compile group: 'com.github.quaintclever', name: 'easyposter', version: '1.2'

海報定義類

/**
 * @author quaint
 * @date 30 March 2020
 * @since 1.0
 */
@EqualsAndHashCode(callSuper = true)
@Data
@Builder
public class SamplePoster extends AbstractDefaultPoster {

    /**
     * 背景圖
     */
    @PosterBackground(width = 666,height = 365)
    private BufferedImage backgroundImage;

    /**
     * 頭像
     */
    @PosterImageCss(position = {27,27},width = 36, height = 36, circle = true)
    private BufferedImage head;

    /**
     * 暱稱
     */
    @PosterFontCss(position = {71,32}, color = {255,255,255})
    private String nickName;

    /**
     * 廣告語
     */
    @PosterFontCss(position = {27,70},center = true, size = 22, color = {255,255,255}, canNewLine={1,221,7})
    private String slogan;

    /**
     * 主圖
     */
    @PosterImageCss(position = {27,172},width = 168,height = 168)
    private BufferedImage mainImage;

    @Tolerate
    public SamplePoster() {}
}

海報繪製

/**
 * 繪製海報本地測試
 * @author quaint
 * @date 21 February 2020
 * @since 1.0
 */
public class PosterTest {

    public static void main(String[] args) throws Exception{

        // 測試,圖片添加到resources/image下 ClassPathResource 需要引入spring
        BufferedImage background = ImageIO.read(new ClassPathResource("image/yayi.png").getInputStream());
        BufferedImage head = ImageIO.read(new ClassPathResource("image/headimage.jpg").getInputStream());
        SamplePoster poster = SamplePoster.builder()
                .backgroundImage(background)
                .head(head)
                .nickName("Quaint")
                .slogan("命運多舛，癡迷淡然。揮別了青春，數不盡的車站。甘於平凡，卻不甘平凡地潰敗。")
                .mainImage(head)
                .build();
        PosterDefaultImpl<SamplePoster> impl = new PosterDefaultImpl<>();
        BufferedImage test = impl.annotationDrawPoster(poster).draw(null);
        ImageIO.write(test,"png",new FileOutputStream("annTest.png"));

    }
}