{"id":175397,"date":"2024-11-08T05:32:19","date_gmt":"2024-11-07T21:32:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175397\/"},"modified":"2024-11-08T05:32:19","modified_gmt":"2024-11-07T21:32:19","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8spring%e7%8d%b2%e5%8f%96%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e7%99%bb%e9%8c%84%e5%90%8d%e7%a8%b1%ef%bc%88spring%e7%8d%b2%e5%8f%96%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175397\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Spring\u7372\u53d6\u6578\u64da\u5eab\u4e2d\u7684\u767b\u9304\u540d\u7a31\uff08spring\u7372\u53d6\u6578\u64da\u5eab\u767b\u9304\u540d\u7a31\uff09"},"content":{"rendered":"

\u5982\u4f55\u4f7f\u7528Spring\u7372\u53d6\u6578\u64da\u5eab\u4e2d\u7684\u767b\u9304\u540d\u7a31<\/h1>\n

\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0cSpring\u6846\u67b6\u56e0\u5176\u9748\u6d3b\u6027\u548c\u5f37\u5927\u7684\u529f\u80fd\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0cSpring\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u7c21\u5316\u9019\u4e00\u904e\u7a0b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Spring\u4f86\u7372\u53d6\u6578\u64da\u5eab\u4e2d\u7684\u767b\u9304\u540d\u7a31\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

Spring\u6846\u67b6\u6982\u8ff0<\/h2>\n

Spring\u662f\u4e00\u500b\u958b\u6e90\u7684Java\u6846\u67b6\uff0c\u65e8\u5728\u7c21\u5316\u4f01\u696d\u7d1a\u61c9\u7528\u7a0b\u5e8f\u7684\u958b\u767c\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\uff0c\u5305\u62ec\u4f9d\u8cf4\u6ce8\u5165\u3001\u9762\u5411\u5207\u9762\u7de8\u7a0b\u548c\u6578\u64da\u8a2a\u554f\u652f\u6301\u3002Spring\u7684\u6578\u64da\u8a2a\u554f\u6a21\u584a\u4f7f\u5f97\u8207\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\u548c\u9ad8\u6548\u3002<\/p>\n

\u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n

\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u3002\u9019\u901a\u5e38\u901a\u904e\u914d\u7f6e\u6587\u4ef6\u4f86\u5b8c\u6210\u3002\u5728Spring\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528application.properties\u6216application.yml\u6587\u4ef6\u4f86\u914d\u7f6e\u6578\u64da\u6e90\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528MySQL\u6578\u64da\u5eab\u7684\u793a\u4f8b\u914d\u7f6e\uff1a<\/p>\n

\n# application.properties\nspring.datasource.url=jdbc:mysql:\/\/localhost:3306\/your_database\nspring.datasource.username=your_username\nspring.datasource.password=your_password\nspring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver\n<\/code><\/pre>\n
\u5275\u5efa\u5be6\u9ad4\u985e<\/h2>\n
\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u5275\u5efa\u4e00\u500b\u5be6\u9ad4\u985e\u4f86\u6620\u5c04\u6578\u64da\u5eab\u4e2d\u7684\u8868\u3002\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u8868\uff0c\u5305\u542b\u7528\u6236\u7684\u767b\u9304\u540d\u7a31\u3002\u4ee5\u4e0b\u662f\u7528\u6236\u5be6\u9ad4\u985e\u7684\u793a\u4f8b\uff1a<\/p>\n
\nimport javax.persistence.Entity;\nimport javax.persistence.Id;\n\n@Entity\npublic class User {\n    @Id\n    private Long id;\n    private String username;\n\n    \/\/ getters and setters\n    public Long getId() {\n        return id;\n    }\n\n    public void setId(Long id) {\n        this.id = id;\n    }\n\n    public String getUsername() {\n        return username;\n    }\n\n    public void setUsername(String username) {\n        this.username = username;\n    }\n}\n<\/code><\/pre>\n
\u5275\u5efa\u6578\u64da\u8a2a\u554f\u5c64<\/h2>\n
\u5728Spring\u4e2d\uff0c\u6578\u64da\u8a2a\u554f\u5c64\u901a\u5e38\u4f7f\u7528Spring Data JPA\u4f86\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u60a8\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u63a5\u53e3\u4f86\u5b9a\u7fa9\u6578\u64da\u8a2a\u554f\u65b9\u6cd5\uff1a<\/p>\n
\nimport org.springframework.data.jpa.repository.JpaRepository;\n\npublic interface UserRepository extends JpaRepository {\n    User findByUsername(String username);\n}\n<\/code><\/pre>\n
\u670d\u52d9\u5c64\u7684\u5be6\u73fe<\/h2>\n
\u63a5\u4e0b\u4f86\uff0c\u60a8\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u670d\u52d9\u985e\u4f86\u8655\u7406\u696d\u52d9\u908f\u8f2f\u3002\u5728\u9019\u500b\u985e\u4e2d\uff0c\u60a8\u53ef\u4ee5\u8abf\u7528\u6578\u64da\u8a2a\u554f\u5c64\u7684\u65b9\u6cd5\u4f86\u7372\u53d6\u767b\u9304\u540d\u7a31\uff1a<\/p>\n
\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.stereotype.Service;\n\n@Service\npublic class UserService {\n    @Autowired\n    private UserRepository userRepository;\n\n    public String getUsernameById(Long id) {\n        User user = userRepository.findById(id).orElse(null);\n        return user != null ? user.getUsername() : null;\n    }\n}\n<\/code><\/pre>\n
\u63a7\u5236\u5668\u5c64\u7684\u5be6\u73fe<\/h2>\n
\u6700\u5f8c\uff0c\u60a8\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u63a7\u5236\u5668\u4f86\u8655\u7406HTTP\u8acb\u6c42\u4e26\u8fd4\u56de\u767b\u9304\u540d\u7a31\uff1a<\/p>\n
\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.web.bind.annotation.GetMapping;\nimport org.springframework.web.bind.annotation.PathVariable;\nimport org.springframework.web.bind.annotation.RestController;\n\n@RestController\npublic class UserController {\n    @Autowired\n    private UserService userService;\n\n    @GetMapping(\"\/users\/{id}\/username\")\n    public String getUsername(@PathVariable Long id) {\n        return userService.getUsernameById(id);\n    }\n}\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u6211\u5011\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528Spring\u6846\u67b6\u4f86\u7372\u53d6\u6578\u64da\u5eab\u4e2d\u7684\u767b\u9304\u540d\u7a31\u3002\u5f9e\u8a2d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u5230\u5275\u5efa\u5be6\u9ad4\u985e\u3001\u6578\u64da\u8a2a\u554f\u5c64\u3001\u670d\u52d9\u5c64\u548c\u63a7\u5236\u5668\u5c64\uff0c\u9019\u4e9b\u6b65\u9a5f\u90fd\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u69cb\u5efa\u4e00\u500b\u529f\u80fd\u5b8c\u6574\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684Spring\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Spring\u6846\u67b6\u5f9e\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u767b\u9304\u540d\u7a31\uff0c\u7c21\u5316\u6578\u64da\u8a2a\u554f\u548c\u7528\u6236\u8eab\u4efd\u9a57\u8b49\u904e\u7a0b\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-175397","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175397","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=175397"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175397\/revisions"}],"predecessor-version":[{"id":175398,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175397\/revisions\/175398"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}