{"id":1981,"date":"2021-02-10T11:53:11","date_gmt":"2021-02-10T03:53:11","guid":{"rendered":"https:\/\/www.yusian.com\/blog\/?p=1981"},"modified":"2021-02-10T12:03:12","modified_gmt":"2021-02-10T04:03:12","slug":"spring%e5%8a%a8%e6%80%81%e4%bb%a3%e7%90%86%e7%9a%84%e7%ae%80%e5%8d%95%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.yusian.com\/blog\/java\/2021\/02\/10\/1153111981.html","title":{"rendered":"Spring\u52a8\u6001\u4ee3\u7406\u7684\u7b80\u5355\u5b9e\u73b0"},"content":{"rendered":"

\u539f\u59cb\u5bf9\u8c61(\u63a5\u53e3+\u5b9e\u73b0)<\/h2>\n

\n UserService\n<\/p><\/blockquote>\n

package com.yusian.service;\n\nimport com.yusian.domain.User;\n\npublic interface UserService {\n\n    void register(User user);\n\n    boolean login(String username, String password);\n\n}\n\n<\/code><\/pre>\n
\n  UserServiceImpl\n<\/p><\/blockquote>\n
package com.yusian.service;\n\nimport com.yusian.domain.User;\n\npublic class UserServiceImpl implements UserService{\n    @Override\n    public void register(User user) {\n        System.out.println(\"UserServiceImpl.register--------\u539f\u59cb\u529f\u80fd\");\n    }\n\n    @Override\n    public boolean login(String username, String password) {\n        System.out.println(\"UserServiceImpl.login--------\u539f\u59cb\u529f\u80fd\");\n        return false;\n    }\n}\n\n<\/code><\/pre>\n
\u9644\u52a0\u5bf9\u8c61(\u5b9e\u73b0MethodBeforeAdvice\u63a5\u53e3)<\/h2>\n
\n  Before\n<\/p><\/blockquote>\n
package com.yusian.aop;\n\nimport org.springframework.aop.MethodBeforeAdvice;\n\nimport java.lang.reflect.Method;\n\npublic class Before implements MethodBeforeAdvice {\n    @Override\n    public void before(Method method, Object[] objects, Object o) throws Throwable {\n        System.out.println(\"Before.before----------------\u9644\u52a0\u529f\u80fd: \" + o);\n    }\n}\n\n<\/code><\/pre>\n
AOP\u7ec4\u88c5<\/h2>\n
\n  \u5f15\u7528\u76f8\u5173\u4f9d\u8d56\n<\/p><\/blockquote>\n
<dependencies>\n    <dependency>\n        <groupId>org.springframework<\/groupId>\n        <artifactId>spring-aop<\/artifactId>\n        <version>5.3.3<\/version>\n    <\/dependency>\n\n    <dependency>\n        <groupId>org.aspectj<\/groupId>\n        <artifactId>aspectjrt<\/artifactId>\n        <version>1.9.6<\/version>\n    <\/dependency>\n\n    <dependency>\n        <groupId>org.aspectj<\/groupId>\n        <artifactId>aspectjweaver<\/artifactId>\n        <version>1.9.6<\/version>\n    <\/dependency>\n<\/dependencies>\n<\/code><\/pre>\n
\n  Spring\u914d\u7f6e\n<\/p><\/blockquote>\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<beans xmlns=\"http:\/\/www.springframework.org\/schema\/beans\"\n       xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\" xmlns:aop=\"http:\/\/www.springframework.org\/schema\/aop\"\n       xsi:schemaLocation=\"http:\/\/www.springframework.org\/schema\/beans http:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd http:\/\/www.springframework.org\/schema\/aop https:\/\/www.springframework.org\/schema\/aop\/spring-aop.xsd\">\n\n    <bean id=\"userService\" class=\"com.yusian.service.UserServiceImpl\"\/>\n\n    <bean id=\"before\" class=\"com.yusian.aop.Before\"\/>\n\n    <aop:config>\n        <aop:pointcut id=\"pc\" expression=\"execution(* *(..))\"\/>\n        <aop:advisor advice-ref=\"before\" pointcut-ref=\"pc\"\/>\n    <\/aop:config>\n\n<\/beans>\n<\/code><\/pre>\n
AOP<\/strong>: Aspect Oriented Programming \u9762\u5411\u5207\u9762\u7f16\u7a0b<\/p>\n
\u200b       \u5982\u679c\u62ff\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u6765\u5bf9\u6807\u7684\u8bdd\uff0c\u8fd9\u4e2a\u6240\u8c13\u7684\u5207\u9762\u5c31\u662f\u751f\u547d\u5468\u671f\u4e2d\u7684\u67d0\u4e00\u4e2a\u65f6\u523b\u70b9\u3002\u6574\u4e2a\u751f\u547d\u5468\u671f\u4e2d\u4f1a\u6709\u591a\u4e2a\u65b9\u6cd5\uff0c\u5728\u4e0d\u540c\u7684\u65f6\u671f\u8c03\u7528\uff0c\u9762\u5411\u5207\u9762\u6307\u7684\u5c31\u662f\u4e0d\u540c\u7684\u751f\u547d\u5468\u671f\u65b9\u6cd5<\/p>\n
\u200b       pointcut<\/code>: \u5207\u5165\u70b9\u5c31\u662f\u6307\u5728\u67d0\u4e9b\u65b9\u6cd5\u524d\u589e\u52a0\u4e00\u4e2a\u751f\u547d\u5468\u671f\u65b9\u6cd5\uff0c\u5728\u6b64\u4e4b\u524d\u5148\u8c03\u7528\u6240\u8c13\u7684\u5207\u5165\u70b9\uff0c\u7136\u540e\u518d\u6309\u539f\u6765\u7684\u6d41\u7a0b\u6216\u987a\u5e8f\u6267\u884c\uff0c\u4ee5\u8fbe\u5230\u6211\u4eec\u9700\u8981\u7684\u6548\u679c\uff0c\u8fd9\u662f\u4e00\u79cd\u601d\u60f3\u3002<\/p>\n
\u200b       Spring\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u4e2d\u589e\u52a0\u6807\u7b7e\uff0c\u544a\u8bc9Spring\u6846\u67b6\uff0c\u9700\u8981\u5728\u54ea\u4e9b\u65b9\u6cd5\u524d\u5207\u5165\u4ec0\u4e48\uff0c\u4e24\u4e2a\u5173\u952e\u70b9\uff1a\u54ea\u4e9b\u65b9\u6cd5<\/strong>\u4e0e\u5207\u5165\u4ec0\u4e48<\/strong>\uff0c\u5206\u522b\u5bf9\u5e94expression<\/code>\u8868\u8fbe\u5f0f\u4e0e\u5b9e\u73b0MethodBeforeAdvice<\/code>\u63a5\u53e3<\/p>\n
\u5b9e\u73b0\u4e0e\u6d4b\u8bd5<\/h2>\n
@Test\npublic void dynamicProxyTest() {\n    ApplicationContext ctx = new ClassPathXmlApplicationContext(\"applicationContext.xml\");\n    UserService userService = ctx.getBean(\"userService\", UserService.class);\n    userService.register(new User());\n}\n<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n
Before.before----------------\u9644\u52a0\u529f\u80fd: com.yusian.service.UserServiceImpl@6dc17b83\nUserServiceImpl.register--------\u539f\u59cb\u529f\u80fd\n\nProcess finished with exit code 0\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u539f\u59cb\u5bf9\u8c61(\u63a5\u53e3+\u5b9e\u73b0) UserService package com.yusian.service; import com.yusian.domain.User; public interface UserService { void register(User user); boolean login(String username, String password); } UserServiceImpl package com.yusian.service; import com.yusian.domain.User; public class UserServiceImpl implements UserService{ @Override public void register(User user) { System.out.println(“UserServiceImpl.register——–\u539f\u59cb\u529f\u80fd”); } @Override public boolean login(String username, String password) { System.out.println(“UserServiceImpl.login——–\u539f\u59cb\u529f\u80fd”); return false; } } \u9644\u52a0\u5bf9\u8c61(\u5b9e\u73b0MethodBeforeAdvice\u63a5\u53e3) Before package com.yusian.aop; import […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[349,350,347],"class_list":["post-1981","post","type-post","status-publish","format-standard","hentry","category-java","tag-aop","tag-aspect","tag-spring"],"_links":{"self":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/1981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/comments?post=1981"}],"version-history":[{"count":0,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/posts\/1981\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/media?parent=1981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/categories?post=1981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yusian.com\/blog\/wp-json\/wp\/v2\/tags?post=1981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}