{"id":10008410,"date":"2024-02-27T22:11:47","date_gmt":"2024-02-27T14:11:47","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008410"},"modified":"2024-02-27T22:11:47","modified_gmt":"2024-02-27T14:11:47","slug":"%e5%a6%82%e4%bd%95%e5%88%9b%e5%bb%ba%e8%87%aa%e5%b7%b1%e7%9a%84spring-boot-starter%e5%b9%b6%e4%b8%ba%e5%85%b6%e7%bc%96%e5%86%99%e5%8d%95%e5%85%83%e6%b5%8b%e8%af%95","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008410","title":{"rendered":"\u5982\u4f55\u521b\u5efa\u81ea\u5df1\u7684Spring Boot Starter\u5e76\u4e3a\u5176\u7f16\u5199\u5355\u5143\u6d4b\u8bd5"},"content":{"rendered":"

\u5f53\u6211\u4eec\u60f3\u8981\u5c01\u88c5\u4e00\u4e9b\u81ea\u5b9a\u4e49\u529f\u80fd\u7ed9\u522b\u4eba\u4f7f\u7528\u7684\u65f6\u5019\uff0c\u521b\u5efaSpring Boot Starter\u7684\u5f62\u5f0f\u662f\u6700\u597d\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002\u5982\u679c\u60a8\u8fd8\u4e0d\u4f1a\u6784\u5efa\u81ea\u5df1\u7684Spring Boot Starter\u7684\u8bdd\uff0c\u672c\u6587\u5c06\u5e26\u4f60\u4e00\u8d77\u521b\u5efa\u4e00\u4e2a\u81ea\u5df1\u7684Spring Boot Starter\u3002<\/p>\n

\u5feb\u901f\u5165\u95e8<\/h2>\n
    \n
  1. \u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Maven \u9879\u76ee\u3002\u7b2c\u4e09\u65b9\u5c01\u88c5\u7684\u547d\u540d\u683c\u5f0f\u662f xxx-spring-boot-starter<\/code> \uff0c\u4f8b\u5982\uff1adidispace-spring-boot-starter<\/code>\u3002<\/li>\n
  2. \u7f16\u8f91pom.xml<\/code>\uff0c\u6dfb\u52a0spring-boot-autoconfigure<\/code>\u548cspring-boot-starter<\/code>\u4f9d\u8d56<\/li>\n<\/ol>\n
    <dependencies>\n    <dependency>\n        <groupId>org.springframework.boot<\/groupId>\n        <artifactId>spring-boot-starter<\/artifactId>\n    <\/dependency>\n    <dependency>\n        <groupId>org.springframework.boot<\/groupId>\n        <artifactId>spring-boot-autoconfigure<\/artifactId>\n    <\/dependency>\n<\/dependencies><\/code><\/pre>\n
      \n
    1. \u521b\u5efa\u4e00\u4e2a\u7528 @Configuration<\/code> \u6ce8\u91ca\u7684\u914d\u7f6e\u7c7b\uff0c\u5728\u8fd9\u91cc\u60a8\u53ef\u4ee5\u4f7f\u7528@Bean<\/code>\u6765\u521b\u5efa\u4f7f\u7528@ConditionalOnClass<\/code>\u3001@ConditionalOnMissingBean<\/code>\u7b49\u6761\u4ef6\u6ce8\u91ca\u6765\u63a7\u5236\u4f55\u65f6\u5e94\u7528\u914d\u7f6e\u3002<\/li>\n<\/ol>\n
      @Configuration\n@ConditionalOnClass(MyFeature.class)\n@ConditionalOnProperty(prefix = "myfeature", name = "enabled", matchIfMissing = true)\npublic class MyFeatureAutoConfiguration {\n\n    @Bean\n    @ConditionalOnMissingBean\n    public MyFeature myFeature() {\n        return new MyFeature();\n    }\n}<\/code><\/pre>\n
        \n
      1. \u5728src\/main\/resources\/META-INF<\/code>\u76ee\u5f55\u4e0b\u521b\u5efaspring.factories<\/code>\u6587\u4ef6\uff0c\u5e76\u5728org.springframework.boot.autoconfigure.EnableAutoConfiguration<\/code>\u5173\u952e\u5b57\u4e0b\u5217\u51fa\u60a8\u7684\u81ea\u52a8\u914d\u7f6e\u7c7b\uff0c\u6bd4\u5982\uff1a<\/li>\n<\/ol>\n
        org.springframework.boot.autoconfigure.EnableAutoConfiguration=\/\ncom.didispace.myfeature.MyFeatureAutoConfiguration<\/code><\/pre>\n
        \u8be5\u914d\u7f6e\u7684\u4f5c\u7528\u662f\u8ba9Spring Boot\u5e94\u7528\u5728\u5f15\u5165\u60a8\u81ea\u5b9a\u4e49Starter\u7684\u65f6\u5019\u53ef\u4ee5\u81ea\u52a8\u8fd9\u91cc\u7684\u914d\u7f6e\u7c7b\u3002<\/p>\n
        \u6ce8\u610f\uff1aSpring Boot 2.7\u5f00\u59cb\uff0c\u4e0d\u518d\u63a8\u8350\u4f7f\u7528spring.factories<\/code>\uff0c\u800c\u662f\u6539\u7528\/META-INF\/spring\/org.springframework.boot.autoconfigure.AutoConfiguration.imports<\/code>\uff0c\u6587\u4ef6\u5185\u5bb9\u76f4\u63a5\u653e\u9700\u8981\u81ea\u52a8\u52a0\u8f7d\u914d\u7f6e\u7c7b\u8def\u5f84\u5373\u53ef\u3002\u8fd9\u4e2a\u53d8\u66f4\u5177\u4f53\u53ef\u89c1\u4e4b\u524d\u7684\u8fd9\u7bc7\u6587\u7ae0\uff1a\u300aSpring Boot 2.7\u5f00\u59cbspring.factories\u4e0d\u63a8\u8350\u4f7f\u7528\u4e86\u300b<\/a><\/p><\/blockquote>\n
        \u9a8c\u8bc1\u6d4b\u8bd5<\/h2>\n
        \u5728\u5236\u4f5cSpring Boot Starter\u7684\u65f6\u5019\uff0c\u4e00\u5b9a\u8bb0\u5f97\u4f7f\u7528\u5355\u5143\u6d4b\u8bd5\u6765\u9a8c\u8bc1\u548c\u786e\u4fdd\u81ea\u52a8\u5316\u914d\u7f6e\u7c7b\u5728\u4efb\u4f55\u6761\u4ef6\u903b\u8f91\u5728\u542f\u52a8\u5668\u4e0b\u80fd\u591f\u6309\u7167\u6b63\u786e\u7684\u9884\u671f\u8fd0\u884c\u3002<\/p>\n
        \u521b\u5efa\u5355\u5143\u6d4b\u8bd5<\/h3>\n
        \u4f7f\u7528@SpringBootTest<\/code>\u52a0\u8f7d\u5b8c\u6574\u7684\u5e94\u7528\u7a0b\u5e8f\u4e0a\u4e0b\u6587\uff0c\u5e76\u9a8c\u8bc1\u542f\u52a8\u7a0b\u5e8f\u662f\u5426\u6b63\u786e\u914d\u7f6e\u4e86 Bean \u548c\u5c5e\u6027\u3002<\/p>\n
        @SpringBootTest(classes = TestApplication.class)\npublic class MyStarterAutoConfigurationTest {\n\n    @Autowired(required = false)\n    private MyService myService;\n\n    @Test\n    public void testMyServiceAutoConfigured() {\n        assertNotNull(myService, "MyService should be auto-configured");\n    }\n}<\/code><\/pre>\n
        \u8986\u76d6\u4e0d\u540c\u7684\u914d\u7f6e<\/h3>\n
        \u5982\u679c\u6709\u4e0d\u540c\u7684\u914d\u7f6e\u65b9\u6848\uff0c\u90a3\u4e48\u8fd8\u9700\u8981\u4f7f\u7528@TestPropertySource<\/code>\u6216@DynamicPropertySource<\/code>\u8986\u76d6\u5c5e\u6027\u4ee5\u6d4b\u8bd5\u4e0d\u540c\u914d\u7f6e\u4e0b\u7684\u60c5\u51b5\u3002<\/p>\n
        \u6216\u8005\u4e5f\u53ef\u4ee5\u76f4\u63a5\u7b80\u5355\u7684\u901a\u8fc7@SpringBootTest<\/code>\u4e2d\u7684\u5c5e\u6027\u6765\u914d\u7f6e\uff0c\u6bd4\u5982\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n
        @SpringBootTest(properties = "my.starter.custom-property=customValue")\npublic class MyStarterPropertiesTest {\n\n    @Value("${my.starter.custom-property}")\n    private String customProperty;\n\n    @Test\n    public void testPropertyOverride() {\n        assertEquals("customValue", customProperty, "Custom property should be overridden by @SpringBootTest");\n    }\n}<\/code><\/pre>\n
        \u8986\u76d6@Conditional<\/code>\u7684\u4e0d\u540c\u5206\u652f<\/h3>\n
        \u5982\u679c\u60a8\u7684\u542f\u52a8\u5668\u5305\u542b\u6761\u4ef6\u914d\u7f6e\uff0c\u6bd4\u5982\uff1a@ConditionalOnProperty<\/code>\u3001@ConditionalOnClass<\/code>\u7b49\u6ce8\u89e3\uff0c\u90a3\u4e48\u5c31\u5fc5\u987b\u7f16\u5199\u6d4b\u8bd5\u6765\u8986\u76d6\u6240\u6709\u6761\u4ef6\u4ee5\u9a8c\u8bc1\u662f\u5426\u5df2\u6b63\u786e\u3002<\/p>\n
        \u6bd4\u5982\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n
        @SpringBootTest(classes = {TestApplication.class, MyConditionalConfiguration.class})\n@ConditionalOnProperty(name = "my.starter.enable", havingValue = "true")\npublic class MyStarterConditionalTest {\n\n    @Autowired\n    private ApplicationContext context;\n\n    @Test\n    public void conditionalBeanNotLoadedWhenPropertyIsFalse() {\n        assertFalse(\n            context.containsBean("conditionalBean"),\n            "Conditional bean should not be loaded when 'my.starter.enable' is false"\n        );\n    }\n}<\/code><\/pre>\n
        \u4e3a\u4e86\u8986\u76d6\u4e0d\u540c\u7684\u6761\u4ef6\u5206\u652f\uff0c\u6211\u4eec\u901a\u5e38\u8fd8\u9700\u8981\u4f7f\u7528@TestConfiguration<\/code>\u6ce8\u89e3\u6765\u6709\u9009\u62e9\u5730\u542f\u7528\u6216\u7981\u7528\u67d0\u4e9b\u81ea\u52a8\u914d\u7f6e\u3002<\/p>\n
        \u5c0f\u7ed3<\/h2>\n
        \u672c\u6587\u4ecb\u7ecd\u4e86\u4e24\u4e2aSpring Boot\u7684\u8fdb\u9636\u5185\u5bb9\uff1a<\/p>\n
          \n
        1. \u5982\u4f55\u521b\u5efa Spring Boot Starter<\/li>\n
        2. \u5982\u4f55\u4e3a Spring Boot Starter \u63d0\u4f9b\u5355\u5143\u6d4b\u8bd5<\/li>\n<\/ol>\n
          \u638c\u63e1\u8fd9\u9879\u6280\u80fd\u53ef\u4ee5\u5e2e\u4f60\u66f4\u597d\u7684\u4e3aSpring Boot\u63d0\u4f9b\u6a21\u5757\u5212\u7684\u529f\u80fd\u5c01\u88c5\u3002\u5982\u679c\u60a8\u5b66\u4e60\u8fc7\u7a0b\u4e2d\u5982\u9047\u56f0\u96be\uff1f\u53ef\u4ee5\u52a0\u5165\u6211\u4eec\u8d85\u9ad8\u8d28\u91cf\u7684Spring\u6280\u672f\u4ea4\u6d41\u7fa4<\/a>\uff0c\u53c2\u4e0e\u4ea4\u6d41\u4e0e\u8ba8\u8bba\uff0c\u66f4\u597d\u7684\u5b66\u4e60\u4e0e\u8fdb\u6b65\uff01\u66f4\u591aSpring Boot\u6559\u7a0b\u53ef\u4ee5\u70b9\u51fb\u76f4\u8fbe\uff01<\/a>\uff0c\u6b22\u8fce\u6536\u85cf\u4e0e\u8f6c\u53d1\u652f\u6301\uff01<\/p>\n
          \u6700\u540e\u518d\u7ed9\u5927\u5bb6\u63a8\u8350\u4e00\u4e9b\u6709\u5173Spring Boot Starter\u548c\u81ea\u52a8\u5316\u914d\u7f6e\u7684\u6269\u5c55\u9605\u8bfb\uff1a<\/p>\n