Java生成微信分享海报小工具EasyPoster

比眉伴天荒 2023-07-19 15:29 67阅读 0赞

## 前言 ##

微信后台生成海报一般都是一个模板写死，然后就完事了，过了不久让修改个模板，就又要看半天，还要考虑是否重新复制一份改一改，越来越多的重复代码，全在一个图片类里，然后就越来越乱。这两天用设计模式处理了一下，让以后修改模板，新增模板更舒服一点。有第三方好用的轻量级的实现，还请留言。感激！！  
[博客园链接][Link 1]

## 效果图 ##

![效果图][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3F1YWludF9jc2Ru_size_16_color_FFFFFF_t_70_pic_center]

![注解效果图][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3F1YWludF9jc2Ru_size_16_color_FFFFFF_t_70_pic_center 1]

## 简单注解实现绘制 ##

基于java8 和 lombok 的小轮子

[前往github star支持][github star]

**Maven 引入【github直接clone源码，更方便定制修改】**

<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'

**海报定义类**

/** * @author quaint * @date 30 March 2020 * @since 1.0 */
    @EqualsAndHashCode(callSuper = true)
    @Data
    @Builder
    public class SamplePoster extends AbstractDefaultPoster { 
    
        /** * 背景图 */
        @PosterBackground(width = 666,height = 365)
        private BufferedImage backgroundImage;
    
        /** * 头像 */
        @PosterImageCss(position = { 27,27},width = 36, height = 36, circle = true)
        private BufferedImage head;
    
        /** * 昵称 */
        @PosterFontCss(position = { 71,32}, color = { 255,255,255})
        private String nickName;
    
        /** * 广告语 */
        @PosterFontCss(position = { 27,70},center = true, size = 22, color = { 255,255,255}, canNewLine={ 1,221,7})
        private String slogan;
    
        /** * 主图 */
        @PosterImageCss(position = { 27,172},width = 168,height = 168)
        private BufferedImage mainImage;
    
        @Tolerate
        public SamplePoster() { }
    }

**海报绘制**

/** * 绘制海报本地测试 * @author quaint * @date 21 February 2020 * @since 1.0 */
    public class PosterTest { 
    
        public static void main(String[] args) throws Exception{ 
    
            // 测试,图片添加到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("命运多舛，痴迷淡然。挥别了青春，数不尽的车站。甘于平凡，却不甘平凡地溃败。")
                    .mainImage(head)
                    .build();
            PosterDefaultImpl<SamplePoster> impl = new PosterDefaultImpl<>();
            BufferedImage test = impl.annotationDrawPoster(poster).draw(null);
            ImageIO.write(test,"png",new FileOutputStream("annTest.png"));
    
        }
    }

[Link 1]: https://www.cnblogs.com/quaint/p/12349817.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3F1YWludF9jc2Ru_size_16_color_FFFFFF_t_70_pic_center]: /images/20230528/c66db8e2e45c4ea5bbc77fa431f26d7b.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3F1YWludF9jc2Ru_size_16_color_FFFFFF_t_70_pic_center 1]: /images/20230528/1b00e02de42340f8ab12455765056263.png
[github star]: https://github.com/quaintclever/easyposter