{"id":40301,"date":"2023-01-28T22:20:37","date_gmt":"2023-10-08T07:06:45","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8spring-boot%e8%bf%9b%e8%a1%8ckotlin%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%af%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b%e3%80%82\/"},"modified":"2024-04-29T11:57:45","modified_gmt":"2024-04-29T03:57:45","slug":"%e4%bd%bf%e7%94%a8spring-boot%e8%bf%9b%e8%a1%8ckotlin%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%af%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8spring-boot%e8%bf%9b%e8%a1%8ckotlin%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%af%e5%85%a5%e9%97%a8%e6%95%99%e7%a8%8b%e3%80%82\/","title":{"rendered":"\u4f7f\u7528Spring Boot\u8fdb\u884cKotlin\u670d\u52a1\u5668\u7aef\u5165\u95e8\u6559\u7a0b"},"content":{"rendered":"<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/0-0.png\" alt=\"kotlin (1).png\" \/><\/div>\n<p>\u5728\u5e73\u65f6\u7684\u5de5\u4f5c\u4e2d\uff0c\u6211\u4f7f\u7528PHP\uff08Laravel\uff09\u3002\u6700\u8fd1\u6211\u5728Android\u5f00\u53d1\u4e2d\u5c1d\u8bd5\u4e86Kotlin\uff0c\u540c\u65f6\u4e5f\u4e00\u76f4\u60f3\u5c1d\u8bd5\u4e00\u6b21\u4f7f\u7528\u9759\u6001\u7c7b\u578b\u8bed\u8a00\u8fdb\u884cWeb\u5f00\u53d1\uff0c\u6240\u4ee5\u51b3\u5b9a\u4f7f\u7528Kotlin\u00d7Spring Boot\u6765\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684Web\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u5728\u63a5\u89e6Kotlin\u65f6\uff0c\u6211\u53d1\u73b0\u5f88\u591a\u4fe1\u606f\u662f\u4ee5Java\u77e5\u8bc6\u4e3a\u524d\u63d0\u8fdb\u884c\u7f16\u5199\u7684\u3002\u6211\u81ea\u5df1\u53ea\u4f1a\u4e00\u4e9bJava\u57fa\u7840\u77e5\u8bc6\uff0c\u6240\u4ee5\u6709\u65f6\u8981\u8fdb\u884c\u7e41\u7410\u7684\u67e5\u8be2\u3002\u4e3a\u4e86\u8ba9\u6ca1\u6709Java\u77e5\u8bc6\u7684\u4eba\u4e5f\u80fd\u7406\u89e3\uff0c\u6211\u6253\u7b97\u5c3d\u91cf\u7528\u7b80\u5355\u7684\u65b9\u5f0f\u6765\u5199\u3002<\/p>\n<h1>\u73af\u5883<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">OS: macOS Catalina<\/ul>\n<\/li>\n<\/ul>\n<p>\u8a00\u8a9e: Kotlin<\/p>\n<p>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af: Spring Boot<\/p>\n<p>\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb: Gradle<\/p>\n<p>IDE: Intellij IDEA<\/p>\n<p>\u9009\u62e9\u5c06\u6846\u67b6\u8f6c\u4e3aSpring Boot\u7684\u539f\u56e0\u662f\u56e0\u4e3a\u5982\u679c\u7528Kotlin\u8fdb\u884cWeb\u5f00\u53d1\u7684\u8bdd\uff0c\u5b83\u4f3c\u4e4e\u662f\u6700\u6807\u51c6\u7684\u9009\u62e9\u3002<br \/>\n\u6211\u4e5f\u5f88\u60f3\u5c1d\u8bd5\u4e00\u4e0b\u540d\u4e3aKtor\u7684API\u670d\u52a1\u5668\u6846\u67b6\uff0c\u542c\u8d77\u6765\u4e5f\u5f88\u4e0d\u9519\u3002<\/p>\n<h1>\u4e8b\u524d\u51c6\u5907<\/h1>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5b89\u88c5JDK\uff08Java\u5f00\u53d1\u5de5\u5177\u5305\uff09\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5173\u4e8eJDK\uff0c\u6211\u4eec\u5728\u4ee5\u4e0b\u9879\u76ee\u4e2d\u8fdb\u884c\u4e86\u89e3\u91ca\uff0c\u8bf7\u9605\u8bfb\u8fd9\u91cc\u5982\u679c\u4f60\u4e0d\u660e\u767d\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5b89\u88c5IntelliJ IDEA\u5e76\u8fdb\u884c\u8bbe\u7f6e\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>IntelliJ IDEA\u662fKotlin\u7684\u5f00\u53d1\u8005JetBrains\u521b\u5efa\u7684IDE\uff0c\u51e0\u4e4e\u5b8c\u7f8e\u5730\u652f\u6301Kotlin\u3002\u8bbe\u7f6e\u8fc7\u7a0b\u81ea\u5df1\u6309\u7167\u6307\u5f15\u8fdb\u884c\u5e94\u8be5\u6ca1\u95ee\u9898\u3002\u8fd9\u91cc\u6709\u4e00\u7bc7\u53ef\u80fd\u4f1a\u6709\u53c2\u8003\u4ef7\u503c\u7684\u6587\u7ae0\u3002<\/ol>\n<p>\u6211\u4f7f\u7528\u4e86Homebrew\u6765\u5b89\u88c5\u8fd9\u4e24\u4e2a\u9009\u9879\u3002\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u7531\u4e8eKotlin\u9644\u5e26\u5728Intellij IDEA\u4e2d\uff0c\u60a8\u65e0\u9700\u5355\u72ec\u5b89\u88c5\u5373\u53ef\u4f7f\u7528\u3002<\/p>\n<h1>\u9884\u5907\u77e5\u8bc6<\/h1>\n<h2>JDK\u53ef\u4ee5\u5728\u8ba1\u7b97\u673a\u4e0a\u5f00\u53d1\u3001\u7f16\u8bd1\u548c\u8fd0\u884cJava\u7a0b\u5e8f\u7684\u8f6f\u4ef6\u5e73\u53f0\u3002<\/h2>\n<p>\u5728\u51c6\u5907\u9636\u6bb5\uff0c\u6211\u5b89\u88c5\u4e86JDK\uff0c\u4f46\u4e5f\u8bb8\u8fd8\u6709\u4eba\u4f1a\u6000\u7591\uff1a&#8221;JDK\u662f\u7528\u6765\u505a\u4ec0\u4e48\u7684\uff1f\u65e2\u7136\u662fKotlin\uff0c\u53ea\u8981\u6709Kotlin\u7684\u7f16\u8bd1\u5668\u548c\u6784\u5efa\u5de5\u5177\u5c31\u53ef\u4ee5\u6267\u884c\u4e86\uff0c\u4e0d\u662f\u5417\uff1f&#8221;\u3002<br \/>\n\u4e3a\u4e86\u89e3\u7b54\u8fd9\u4e9b\u7591\u95ee\uff0c\u6211\u4f1a\u7b80\u8981\u4ecb\u7ecd\u4e00\u4e0bJava\u7684\u6267\u884c\u73af\u5883\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/12-0.png\" alt=\"jvm.png\" \/><\/div>\n<p>\u8bf7\u53c2\u8003\u56fe1\u3002\u9996\u5148\uff0c\u4e0e\u5e38\u89c4\u7684\u7f16\u8bd1\u8bed\u8a00\u4e0d\u540c\uff0cJava\u7a0b\u5e8f\u7f16\u8bd1\u540e\u4e0d\u4f1a\u7acb\u5373\u751f\u6210\u53ef\u6267\u884c\u6587\u4ef6\u3002\u800c\u662f\u4f1a\u751f\u6210\u79f0\u4e3aJava\u7c7b\u6587\u4ef6\u7684Java\u5b57\u8282\u7801\u6587\u4ef6\u3002<\/p>\n<p>\u7136\u540e\uff0c\u5b57\u8282\u7801\u5728\u6bcf\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4e3aJVM\uff08Java\u865a\u62df\u673a\uff09\u63d0\u4f9b\u7684\u865a\u62df\u673a\u4e0a\u8fdb\u884c\u9010\u6761\u89e3\u91ca\u5e76\u6267\u884c\u3002\u7531\u4e8e\u8fd9\u79cd\u673a\u5236\uff0c\u4e0d\u9700\u8981\u4e3a\u6bcf\u4e2a\u73af\u5883\u8fdb\u884c\u7f16\u8bd1\uff0c\u53ea\u9700\u7f16\u8bd1\u4e00\u6b21\u5373\u53ef\u5728JVM\u63d0\u4f9b\u7684\u4efb\u4f55\u73af\u5883\u4e2d\u8fd0\u884c\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/15-0.png\" alt=\"kotlin.png\" \/><\/div>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728\u8fd0\u884c\u6216\u5f00\u53d1Kotlin\u7684\u73af\u5883\u4e2d\uff0c\u5fc5\u987b\u6709JVM\u3002\u8fd9\u91cc\u7ec8\u4e8e\u63d0\u5230\u4e86JDK\u3002<\/p>\n<p>JDK\u662fJava\u5f00\u53d1\u6240\u9700\u7684\u4e00\u5957\u5de5\u5177\u96c6\uff0c\u5305\u62ecJVM\u3001Java\u7f16\u8bd1\u5668\u3001\u5e93\u7b49\u3002\u56e0\u6b64\uff0c\u5728\u51c6\u5907\u6b65\u9aa4\u4e2d\u5b89\u88c5JDK\u662f\u5fc5\u8981\u7684\u3002<\/p>\n<p>\u5982\u679c\u53ea\u662f\u6267\u884c\u7eafKotlin\u4ee3\u7801\uff0c\u53ef\u80fd\u53ea\u9700\u8981Kotlin\u7f16\u8bd1\u5668\u548cJVM\u5373\u53ef\u8fd0\u884c\u3002\u4f46\u662f\uff0c\u8003\u8651\u5230\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u4f1a\u4f7f\u7528Java\u5e93\u6216\u4e0eJava\u6df7\u5408\u4f7f\u7528\uff0c\u5efa\u8bae\u5b89\u88c5JDK\u3002<\/p>\n<h2>Gradle is a build automation tool commonly used in software development.<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/19-0.png\" alt=\"gradle.png\" \/><\/div>\n<p>Gradle\u662f\u4e00\u6b3e\u6784\u5efa\u5de5\u5177\uff0c\u53ef\u4ee5\u81ea\u52a8\u8fdb\u884c\u7f16\u8bd1\u3001\u94fe\u63a5\u3001\u6d4b\u8bd5\u7b49\u64cd\u4f5c\u3002<br \/>\n\u4e0d\u8fc7\uff0c\u6211\u4ece\u672a\u4f7f\u7528\u8fc7\u5176\u4ed6\u56db\u79cd\u6784\u5efa\u5de5\u5177\uff0c\u6240\u4ee5\u5bf9\u4e8e&#8221;\u8fd9\u662f\u597d\u7684\uff01&#8221;\u8fd9\u79cd\u8bf4\u6cd5\u5e76\u4e0d\u5f88\u4e86\u89e3\u3002<br \/>\n\u6211\u8ba4\u4e3a\u4f7f\u7528Groovy\u8bed\u8a00\u8fdb\u884c\u914d\u7f6e\u662f\u5176\u91cd\u8981\u7279\u70b9\u4e4b\u4e00\uff0c\u6240\u4ee5\u5bf9\u4e8e\u5176\u8bed\u6cd5\u81f3\u5c11\u8981\u6709\u4e00\u5b9a\u7684\u4e86\u89e3\u3002\u4ee5\u4e0b\u6587\u7ae0\u53ef\u4ee5\u4f5c\u4e3a\u53c2\u8003\u3002<br \/>\n\u9002\u7528\u4e8e\u4e0d\u719f\u6089Groovy\u7684\u4eba\u7684build.gradle\u57fa\u7840\u5165\u95e8\u6587\u7ae0\u3002<\/p>\n<h2>\u6625\u5b63\u5f15\u5bfc<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/22-0.png\" alt=\"springboot.png\" \/><\/div>\n<p>Spring Boot\u662f\u5c06\u4f20\u7edf\u7684Java\u6846\u67b6Spring Framework\u53d8\u5f97\u66f4\u6613\u4e8e\u4f7f\u7528\u7684\u6846\u67b6\u3002\u5b83\u901a\u8fc7\u4f7f\u7528\u6ce8\u89e3\u6765\u7b80\u5316\u4ee3\u7801\uff0c\u6d88\u9664\u4e86Spring Framework\u590d\u6742\u7684XML\u914d\u7f6e\u3002\u7531\u4e8e\u6211\u6ca1\u6709\u63a5\u89e6\u8fc7Spring Framework\uff0c\u6240\u4ee5\u6211\u4e0d\u77e5\u9053\u5b83\u662f\u5426\u4f1a\u5e26\u6765\u591a\u5927\u7684\u4fbf\u5229\uff0c\u4f46\u6211\u4eec\u5c06\u5728\u540e\u7eed\u5b9e\u9645\u8fd0\u884c\u4e2d\u4e86\u89e3\u5176\u8868\u73b0\u3002<\/p>\n<h1>\u73af\u5883\u5efa\u8bbe<\/h1>\n<p>\u8bdd\u867d\u957f\uff0c\u4f46\u6211\u4eec\u8fd8\u662f\u6765\u8fdb\u884cSpring Boot\u7684\u73af\u5883\u6784\u5efa\u5427\u3002<\/p>\n<h2>\u521b\u5efa\u9879\u76ee\u7684\u8349\u56fe<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/27-0.png\" alt=\"_2020-12-02_21.31.52.png\" \/><\/div>\n<h2>\u4f7f\u7528Intellij IDEA\u8fdb\u884c\u9879\u76ee\u8bbe\u7f6e\u3002<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/29-2.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-12-02 21.44.40.png\" \/><\/div>\n<h1>\u4f7f\u6d4f\u89c8\u5668\u80fd\u591f\u8fdb\u884c\u6ce8\u518c\u548c\u663e\u793a<\/h1>\n<p>\u8fd9\u6b21\u6211\u4eec\u505a\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u901a\u8fc7\u6d4f\u89c8\u5668\u6dfb\u52a0\u548c\u663e\u793a\u7528\u6237\u5217\u8868\u3002<\/p>\n<h2>\u4ea7\u51fa<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/33-0.gif\" alt=\"springboot.gif\" \/><\/div>\n<p>\u76ee\u5f55\u7ed3\u6784<\/p>\n<pre class=\"post-pre\"><code>src\r\n\u251c\u2500\u2500 kotlin\r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 com\r\n\u2502\u00a0\u00a0     \u2514\u2500\u2500 example\r\n\u2502\u00a0\u00a0         \u2514\u2500\u2500 springboot\r\n\u2502\u00a0\u00a0             \u251c\u2500\u2500 SpringbootApplication.kt\r\n\u2502\u00a0\u00a0             \u251c\u2500\u2500 controller\r\n\u2502\u00a0\u00a0             \u2502\u00a0\u00a0 \u2514\u2500\u2500 MainController.kt\r\n\u2502\u00a0\u00a0             \u251c\u2500\u2500 entity\r\n\u2502\u00a0\u00a0             \u2502\u00a0\u00a0 \u2514\u2500\u2500 User.kt\r\n\u2502\u00a0\u00a0             \u2514\u2500\u2500 repository\r\n\u2502\u00a0\u00a0                 \u2514\u2500\u2500 UserRepository.kt\r\n\u2514\u2500\u2500 resources\r\n    \u251c\u2500\u2500 application.properties\r\n    \u2514\u2500\u2500 templates\r\n        \u251c\u2500\u2500 add.html\r\n        \u2514\u2500\u2500 index.html\r\n<\/code><\/pre>\n<details>\u30b3\u30fc\u30c9User.kt<\/p>\n<p>package com.example.springboot.entity<\/p>\n<p>import javax.persistence.Entity<br \/>\nimport javax.persistence.GeneratedValue<br \/>\nimport javax.persistence.GenerationType<br \/>\nimport javax.persistence.Id<\/p>\n<p>@Entity<br \/>\ndata class User(<br \/>\n@Id<br \/>\n@GeneratedValue(strategy = GenerationType.IDENTITY)<br \/>\nvar id: Int = 0,<br \/>\nvar name: String = &#8220;&#8221;<br \/>\n)<\/p>\n<p>UserRepository.kt<\/p>\n<p>package com.example.springboot.repository<\/p>\n<p>import com.example.springboot.entity.User<br \/>\nimport org.springframework.data.repository.CrudRepository<\/p>\n<p>interface UserRepository : CrudRepository&lt;User, Int&gt;<\/p>\n<p>MainController.kt<\/p>\n<p>package com.example.springboot.controller<\/p>\n<p>import com.example.springboot.entity.User<br \/>\nimport com.example.springboot.repository.UserRepository<br \/>\nimport org.springframework.beans.factory.annotation.Autowired<br \/>\nimport org.springframework.stereotype.Controller<br \/>\nimport org.springframework.ui.Model<br \/>\nimport org.springframework.web.bind.annotation.GetMapping<br \/>\nimport org.springframework.web.bind.annotation.PostMapping<br \/>\nimport org.springframework.web.bind.annotation.RequestParam<\/p>\n<p>@Controller<br \/>\nclass MainController {<br \/>\n@Autowired<br \/>\nlateinit var userRepository: UserRepository<\/p>\n<p>@GetMapping(&#8220;\/&#8221;)<br \/>\nfun showUsers(model: Model): String {<br \/>\nval users = userRepository.findAll()<br \/>\nmodel.addAttribute(&#8220;users&#8221;, users)<br \/>\nreturn &#8220;index&#8221;<br \/>\n}<\/p>\n<p>@GetMapping(&#8220;\/add&#8221;)<br \/>\nfun showAddPage(): String {<br \/>\nreturn &#8220;add&#8221;<br \/>\n}<\/p>\n<p>@PostMapping(&#8220;\/add&#8221;)<br \/>\nfun addNewUser(@RequestParam name: String): String {<br \/>\nuserRepository.save(User(0, name))<br \/>\nreturn &#8220;redirect:\/&#8221;<br \/>\n}<br \/>\n}<\/p>\n<p>index.html<\/p>\n<p>&nbsp;<\/p>\n<h1>Users<\/h1>\n<p><input type=\"button\" value=\"\u8ffd\u52a0\u30da\u30fc\u30b8\" \/><\/p>\n<ul>\n<li>[[${user.name}]]<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>add.html<\/p>\n<p>&nbsp;<\/p>\n<h1>Add<\/h1>\n<form action=\"\/add\" method=\"post\"><label for=\"name\">Name:<\/label><br \/>\n<input id=\"name\" name=\"name\" type=\"text\" \/><br \/>\n<button type=\"submit\">\u8ffd\u52a0<\/button><\/form>\n<p>&nbsp;<\/p>\n<p>application.properties<\/p>\n<p>spring.jpa.hibernate.ddl-auto=update<br \/>\nspring.datasource.driver-class-name=org.h2.Driver<br \/>\nspring.datasource.url=jdbc:h2:.\/h2db\/db_example<br \/>\nspring.datasource.username=username<br \/>\nspring.datasource.password=password<\/p>\n<\/details>\n<h2>\u8a73\u76e1<\/h2>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6309\u7167\u4ee5\u4e0b\u7684\u65b9\u5f0f\u6765\u89e3\u91ca\u5e94\u7528\u7a0b\u5e8f\u7684\u5904\u7406\u6d41\u7a0b\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u663e\u793a\u9996\u9875<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u8df3\u8f6c\u5230\u7528\u6237\u6dfb\u52a0\u9875\u9762<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u6dfb\u52a0\u7528\u6237<\/ol>\n<h3>\u5c55\u793a\u9996\u9875<\/h3>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/43-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-12-07 22.45.54.png\" \/><\/div>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u6765\u4ecb\u7ecd\u5f53\u7528\u6237\u8bbf\u95ee\u65f6\uff0c\u4ece\u63a7\u5236\u5668\u63a5\u6536\u8bf7\u6c42\u5e76\u8fdb\u884c\u5904\u7406\u7684\u6b65\u9aa4\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"nn\">com.example.springboot.controller<\/span>\r\n\r\n<span class=\"err\">\u7565<\/span>\r\n\r\n<span class=\"nd\">@Controller<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">MainController<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nd\">@Autowired<\/span>\r\n    <span class=\"k\">lateinit<\/span> <span class=\"kd\">var<\/span> <span class=\"py\">userRepository<\/span><span class=\"p\">:<\/span> <span class=\"nc\">UserRepository<\/span>\r\n\r\n    <span class=\"nd\">@GetMapping<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">showUsers<\/span><span class=\"p\">(<\/span><span class=\"n\">model<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Model<\/span><span class=\"p\">):<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">users<\/span> <span class=\"p\">=<\/span> <span class=\"n\">userRepository<\/span><span class=\"p\">.<\/span><span class=\"nf\">findAll<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"n\">model<\/span><span class=\"p\">.<\/span><span class=\"nf\">addAttribute<\/span><span class=\"p\">(<\/span><span class=\"s\">\"users\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">users<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"s\">\"index\"<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n<span class=\"err\">\u7565<\/span>\r\n<\/code><\/pre>\n<h4>@Controller &#8211;&gt; \u63a7\u5236\u5668<\/h4>\n<p>\u5728\u63a7\u5236\u5668\u7684\u7c7b\u540d\u4e4b\u524d\uff0c\u9700\u8981\u4f7f\u7528@Controller\u6ce8\u89e3\u6216@RestController\u6ce8\u89e3\u3002<br \/>\n\u5982\u679c\u8981\u4f7f\u7528\u6a21\u677f\uff0c\u5219\u4f7f\u7528@Controller\u6ce8\u89e3\u3002\u5982\u679c\u4f7f\u7528@RestController\u6ce8\u89e3\uff0c\u5219\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u5c06\u76f4\u63a5\u6210\u4e3a\u54cd\u5e94\u4f53\u3002<br \/>\n\u5982\u679c\u8981\u8fd4\u56deHTML\uff0c\u5219\u4f7f\u7528@Controller\u6ce8\u89e3\uff1b\u5982\u679c\u8981\u5c06\u5176\u4f5c\u4e3aAPI\u7684\u5165\u53e3\u70b9\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528@RestController\u6ce8\u89e3\u3002<\/p>\n<h4>\u81ea\u52a8\u88c5\u914d<\/h4>\n<p>@Autowired\u6ce8\u89e3\u7528\u4e8e\u6307\u5b9a\u8981\u8fdb\u884cDI\u7684\u7c7b\u3002<br \/>\n\u5728\u672c\u4f8b\u4e2d\uff0c\u5c06\u6ce8\u5165\u7528\u4e8e\u4ece\u6570\u636e\u5e93\u83b7\u53d6\u6570\u636e\u7684UserRepository\u5b9e\u4f8b\u3002<\/p>\n<h4>\u627e\u5230\u6620\u5c04<\/h4>\n<p>@GetMapping(&#8220;\/&#8221;)\u6ce8\u89e3\u610f\u5473\u7740\u5982\u679c\u6536\u5230\u5bf9\/\u7684GET\u65b9\u6cd5\u8bf7\u6c42\uff0c\u5c06\u8c03\u7528\u88ab\u6807\u6ce8\u7684\u65b9\u6cd5\uff08\u672c\u4f8b\u4e2d\u4e3ashowUsers()\uff09\u3002<\/p>\n<h4>\u6a21\u578b<\/h4>\n<p>\u5f53\u4f60\u60f3\u4f20\u9012\u503c\u5230\u6a21\u677f\u65f6\uff0c\u53ef\u4ee5\u5728\u65b9\u6cd5\u7684\u53c2\u6570\u4e2d\u6307\u5b9aModel\uff0c\u7136\u540e\u901a\u8fc7Model\u7684addAttribute()\u65b9\u6cd5\uff0c\u5c06\u6a21\u677f\u53d8\u91cf\u540d\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\uff0c\u503c\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8fdb\u884c\u4f20\u9012\u3002<\/p>\n<h4>userRepository.findAll() \u67e5\u8be2\u6240\u6709\u7528\u6237<\/h4>\n<p>\u6b63\u5728\u6267\u884c\u83b7\u53d6DI UserRespository\u5b9e\u4f8b\u7684\u6240\u6709\u7528\u6237\u7684\u65b9\u6cd5\u3002<br \/>\n~Repository\u7c7b\u662f\u6570\u636e\u83b7\u53d6\u7684\u62bd\u8c61\u5316\u5c42\u3002\u5173\u4e8eUserRepository\u7c7b\u7684\u5177\u4f53\u5185\u5bb9\u5c06\u5728\u540e\u9762\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n<h4>\u8fd4\u56de\u201c\u7d22\u5f15\u201d<\/h4>\n<p>\u5728\u6ce8\u89e3\u4e3a@Controller\u7684\u63a7\u5236\u5668\u5185\u7684\u65b9\u6cd5\u8fd4\u56de\u503c\u4e2d\u6307\u5b9a\u5b57\u7b26\u4e32\uff0c\u5c06\u5176\u6307\u5b9a\u4e3a\u89c6\u56fe\u7684\u6a21\u677f\u7684\u6587\u4ef6\u540d\u4e3a&#8221;templates\/index.html&#8221;\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u6307\u5b9a\u5728View\u4e2d\u7684\u6a21\u677f\u3002\u5982\u524d\u6240\u8ff0\uff0c\u6a21\u677f\u5f15\u64ce\u4f7f\u7528\u7684\u662fThymleaf\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"cp\">&lt;!DOCTYPE html&gt;<\/span>\r\n<span class=\"nt\">&lt;html<\/span> <span class=\"na\">lang=<\/span><span class=\"s\">\"en\"<\/span><span class=\"nt\">&gt;<\/span>\r\n<span class=\"nt\">&lt;head&gt;<\/span>\r\n    <span class=\"nt\">&lt;meta<\/span> <span class=\"na\">charset=<\/span><span class=\"s\">\"UTF-8\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    <span class=\"nt\">&lt;title&gt;<\/span>Index<span class=\"nt\">&lt;\/title&gt;<\/span>\r\n<span class=\"nt\">&lt;\/head&gt;<\/span>\r\n<span class=\"nt\">&lt;body&gt;<\/span>\r\n    <span class=\"nt\">&lt;h1&gt;<\/span>Users<span class=\"nt\">&lt;\/h1&gt;<\/span>\r\n    <span class=\"nt\">&lt;input<\/span> <span class=\"na\">type=<\/span><span class=\"s\">\"button\"<\/span> <span class=\"na\">onclick=<\/span><span class=\"s\">\"location.href='\/add'\"<\/span> <span class=\"na\">value=<\/span><span class=\"s\">\"\u8ffd\u52a0\u30da\u30fc\u30b8\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    <span class=\"nt\">&lt;ul&gt;<\/span>\r\n        <span class=\"nt\">&lt;li<\/span> <span class=\"na\">th:each=<\/span><span class=\"s\">\"user : ${users}\"<\/span><span class=\"nt\">&gt;<\/span>[[${user.name}]]<span class=\"nt\">&lt;\/li&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/ul&gt;<\/span>\r\n<span class=\"nt\">&lt;\/body&gt;<\/span>\r\n<span class=\"nt\">&lt;\/html&gt;<\/span>\r\n<\/code><\/pre>\n<h4>${\u7528\u6237}<\/h4>\n<p>\u60a8\u53ef\u4ee5\u5c06\u4ece\u63a7\u5236\u5668\u4f20\u9012\u6765\u7684\u503c\u7528${}\u62ec\u8d77\u6765\u4f7f\u7528\u3002<\/p>\n<h4>th:each=&#8221;&#8221; -&gt; th:each=&#8221;&#8221;<br \/>\nth:each=&#8221;&#8221; -&gt; \u901a\u8fc7th:each\u5c5e\u6027\u6765\u5b9e\u73b0\u5faa\u73af\u904d\u5386<\/h4>\n<p>\u53ef\u4ee5\u4f7f\u7528th:each=&#8221;variableName : ${iterableVariable}&#8221;\u6765\u751f\u6210\u4e00\u4e2a\u5faa\u73af\u6807\u7b7e\uff0c\u5176\u4e2dvariableName\u662f\u7528\u6765\u5b58\u50a8\u6bcf\u4e2a\u5143\u7d20\u7684\u53d8\u91cf\u540d\uff0citerableVariable\u662f\u53ef\u8fed\u4ee3\u7684\u53d8\u91cf\u3002<\/p>\n<h4>[[${user.name}]] \u8bf7\u5c06\u4ee5\u4e0b\u5185\u5bb9\u7528\u4e2d\u6587\u8fdb\u884c\u91ca\u4e49\uff0c\u53ea\u9700\u4e00\u79cd\u9009\u9879\uff1a<\/h4>\n<p>\u5c06\u8fd9\u4e2a[[\u4e2d\u8eab]]\u4f5c\u4e3a\u6807\u7b7e\u5939\u5728\u4e2d\uff0c\u5c31\u4f1a\u8f93\u51fa\u5b83\u4f5c\u4e3a\u8be5\u5143\u7d20\u7684\u6587\u672c\u3002\u4f7f\u7528&lt;\u6807\u7b7e\u540d th:text=&#8221;\u4e2d\u8eab&#8221;&gt;\u4e5f\u8868\u793a\u540c\u6837\u7684\u4e8b\u60c5\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u89e3\u91ca\u4e00\u4e0b\u7528\u4e8e\u62bd\u8c61\u5316\u6570\u636e\u83b7\u53d6\u7684\u4ed3\u5e93\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"nn\">com.example.springboot.repository<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nn\">com.example.springboot.entity.User<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nn\">org.springframework.data.repository.CrudRepository<\/span>\r\n\r\n<span class=\"kd\">interface<\/span> <span class=\"nc\">UserRepository<\/span> <span class=\"p\">:<\/span> <span class=\"nc\">CrudRepository<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">User<\/span><span class=\"p\">,<\/span> <span class=\"nc\">Int<\/span><span class=\"p\">&gt;<\/span>\r\n<\/code><\/pre>\n<h4>CrudRepository\u662f\u4e00\u4e2a\u6807\u51c6\u63a5\u53e3\u6216\u7c7b\uff0c\u7528\u4e8e\u5728Java\u4e2d\u5b9e\u73b0CRUD\uff08\u521b\u5efa\u3001\u8bfb\u53d6\u3001\u66f4\u65b0\u548c\u5220\u9664\uff09\u64cd\u4f5c\u7684\u5b58\u50a8\u5e93\u3002<\/h4>\n<p>\u8fd9\u662f\u4e00\u4e2a\u63a5\u53e3\uff0c\u7531Spring Data JPA\u63d0\u4f9b\uff0c\u7528\u4e8e\u6267\u884c\u57fa\u672c\u7684\u8868\u64cd\u4f5cCRUD\uff08Create\u3001Read\u3001Upload\u3001Delete\uff09\u3002\u901a\u8fc7\u5b9e\u73b0\u8fd9\u4e2a\u63a5\u53e3\uff0c\u53ef\u4ee5\u5b9e\u73b0CRUD\u64cd\u4f5c\u3002<br \/>\n\u6b64\u5916\uff0cCrudRepository\u7684\u7b2c\u4e00\u4e2a\u6cdb\u578b\u53c2\u6570\u6307\u5b9a\u8981\u64cd\u4f5c\u7684\u5b9e\u4f53\u7c7b\uff0c\u7b2c\u4e8c\u4e2a\u6cdb\u578b\u53c2\u6570\u6307\u5b9a\u5b9e\u4f53\u7c7b\u7684ID\u7c7b\u578b\u3002<br \/>\n\u4e00\u5f00\u59cb\uff0c\u6211\u5f88\u5947\u602a\u7684\u662f\uff0c\u63a7\u5236\u5668\u4e2d\u6ce8\u5165\u4e86UserRepository\uff0c\u4f46UserRepository\u7684\u5b9a\u4e49\u5374\u662f\u4e00\u4e2a\u63a5\u53e3\uff0c\u6211\u4e0d\u660e\u767d\u5982\u4f55\u5728\u6ca1\u6709\u5b9e\u73b0\u7c7b\u7684\u60c5\u51b5\u4e0b\u751f\u6210\u5b9e\u4f8b\uff0c\u4f46\u663e\u7136Spring Data JPA\u5728\u8fd0\u884c\u65f6\u4f1a\u5e2e\u6211\u4eec\u5904\u7406\u597d\u8fd9\u4e9b\u4e8b\u60c5\u3002\uff08\u6211\u968f\u610f\u731c\u6d4b\u7684\uff0c\u8bf7\u8c05\u89e3\uff09<\/p>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u5c06\u67e5\u770b\u5728\u5b58\u50a8\u5e93\u4e2d\u4f7f\u7528\u7684\u5b9e\u4f53\u7684\u5185\u5bb9\u3002\u8fd9\u4e9b\u5b9e\u4f53\u5bf9\u5e94\u4e8e\u6570\u636e\u5e93\u7684\u4e00\u4e2a\u8868\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"err\">\u7565<\/span>\r\n\r\n<span class=\"nd\">@Entity<\/span>\r\n<span class=\"kd\">data class<\/span> <span class=\"nc\">User<\/span><span class=\"p\">(<\/span>\r\n        <span class=\"nd\">@Id<\/span>\r\n        <span class=\"nd\">@GeneratedValue<\/span><span class=\"p\">(<\/span><span class=\"n\">strategy<\/span> <span class=\"p\">=<\/span> <span class=\"nc\">GenerationType<\/span><span class=\"p\">.<\/span><span class=\"nc\">IDENTITY<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"kd\">var<\/span> <span class=\"py\">id<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Int<\/span> <span class=\"p\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"kd\">var<\/span> <span class=\"py\">name<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h4>@Entity<br \/>\n\u5b9e\u4f53<\/h4>\n<p>\u8fd9\u4e2a\u6807\u6ce8\u5c06\u4e0e\u540c\u540d\u7684\u7c7b\u8fdb\u884c\u6620\u5c04\u6210\u8868\u683c\u3002<\/p>\n<h4>@Id<br \/>\nID<\/h4>\n<p>\u7ed9\u4e0e\u4e3b\u952e\u76f8\u5bf9\u5e94\u7684\u5b57\u6bb5\u5c5e\u6027\u3002<\/p>\n<h4>@GeneratedValue(strategy = GenerationType.IDENTITY)<br \/>\n&#8211; \u81ea\u589e\u7b56\u7565\uff1a\u6839\u636e\u4e3b\u952e\u81ea\u52a8\u751f\u6210<\/h4>\n<p>\u5728MySQL\u4e2d\uff0c\u7c7b\u4f3c\u4e8eAUTO_INCREMENT\u7684\u6307\u5b9a\u3002<br \/>\n\u5b83\u6839\u636eGenerationType\u540e\u9762\u7684\u503c\u800c\u5177\u6709\u4e0d\u540c\u7684\u610f\u4e49\u3002<\/p>\n<div>\n<div class=\"post-table\">\u5024\u610f\u5473IDENTITYAUTO_INCREMENT\u3092\u6307\u5b9aSEQUENCEDB\u306e\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3059\u308bTABLE\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u306a\u5024\u3092\u7ba1\u7406\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u3092\u751f\u6210\u3059\u308bAUTODB\u3054\u3068\u306b\u7570\u306a\u308b\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b<\/div>\n<\/div>\n<h3>2. \u8f6c\u5230\u7528\u6237\u6dfb\u52a0\u9875\u9762<\/h3>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/80-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-12-07 22.46.51.png\" \/><\/div>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u6765\u89c2\u5bdf\u7528\u6237\u6309\u4e0b&#8221;\u6dfb\u52a0\u9875\u9762&#8221;\u6309\u94ae\u5e76\u8bbf\u95ee &#8220;\/add&#8221; \u65f6\u63a7\u5236\u5668\u7684\u884c\u4e3a\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"err\">\u7565<\/span>\r\n\r\n<span class=\"nd\">@Controller<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">MainController<\/span> <span class=\"p\">{<\/span>\r\n\r\n<span class=\"err\">\u7565<\/span>\r\n\r\n    <span class=\"nd\">@GetMapping<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/add\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">showAddPage<\/span><span class=\"p\">():<\/span> <span class=\"nc\">String<\/span>  <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"s\">\"add\"<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n<span class=\"err\">\u7565<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u4f7f\u7528GET\u65b9\u6cd5\u5c06\u6765\u81ea\/add\u7684\u8bf7\u6c42\u6620\u5c04\u5230showAddPage()\u65b9\u6cd5\uff0c\u5e76\u5c06\u6a21\u677f\u6307\u5b9a\u4e3a&#8221;add.html&#8221;\u3002<\/p>\n<p>\u73b0\u5728\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u8fd9\u4e2a\u6a21\u677f\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"cp\">&lt;!DOCTYPE html&gt;<\/span>\r\n<span class=\"nt\">&lt;html<\/span> <span class=\"na\">lang=<\/span><span class=\"s\">\"en\"<\/span><span class=\"nt\">&gt;<\/span>\r\n<span class=\"nt\">&lt;head&gt;<\/span>\r\n    <span class=\"nt\">&lt;meta<\/span> <span class=\"na\">charset=<\/span><span class=\"s\">\"UTF-8\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    <span class=\"nt\">&lt;title&gt;<\/span>Add<span class=\"nt\">&lt;\/title&gt;<\/span>\r\n<span class=\"nt\">&lt;\/head&gt;<\/span>\r\n<span class=\"nt\">&lt;body&gt;<\/span>\r\n    <span class=\"nt\">&lt;h1&gt;<\/span>Add<span class=\"nt\">&lt;\/h1&gt;<\/span>\r\n    <span class=\"nt\">&lt;form<\/span> <span class=\"na\">action=<\/span><span class=\"s\">\"\/add\"<\/span> <span class=\"na\">method=<\/span><span class=\"s\">\"post\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        <span class=\"nt\">&lt;label<\/span> <span class=\"na\">for=<\/span><span class=\"s\">\"name\"<\/span><span class=\"nt\">&gt;<\/span>Name:<span class=\"nt\">&lt;\/label&gt;<\/span>\r\n        <span class=\"nt\">&lt;input<\/span> <span class=\"na\">type=<\/span><span class=\"s\">\"text\"<\/span> <span class=\"na\">id=<\/span><span class=\"s\">\"name\"<\/span> <span class=\"na\">name=<\/span><span class=\"s\">\"name\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        <span class=\"nt\">&lt;button<\/span> <span class=\"na\">type=<\/span><span class=\"s\">\"submit\"<\/span><span class=\"nt\">&gt;<\/span>\u8ffd\u52a0<span class=\"nt\">&lt;\/button&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/form&gt;<\/span>\r\n<span class=\"nt\">&lt;\/body&gt;<\/span>\r\n<span class=\"nt\">&lt;\/html&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\u6ca1\u6709\u7279\u522b\u7684\u4e8b\u60c5\uff0c\u53ea\u662f\u7b80\u5355\u5730\u6709\u4e00\u4e2a\u540d\u4e3a\u201cname\u201d\u7684\u8868\u683c\u548c\u4e00\u4e2a\u63d0\u4ea4\u6309\u94ae\u3002<\/p>\n<h3>3. \u6dfb\u52a0\u7528\u6237<\/h3>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3fcd37434c4406c90068\/88-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2020-12-07 22.47.56.png\" \/><\/div>\n<p>\u6700\u5f8c\uff0c\u6211\u4eec\u5c06\u786e\u8ba4\u5728\u6536\u5230POST\u65b9\u6cd5\u8bf7\u6c42\u65f6\u7684\/add\u63a7\u5236\u5668\u7684\u884c\u4e3a\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"err\">\u7565<\/span>\r\n\r\n<span class=\"nd\">@Controller<\/span>\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">MainController<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nd\">@Autowired<\/span>\r\n    <span class=\"k\">lateinit<\/span> <span class=\"kd\">var<\/span> <span class=\"py\">userRepository<\/span><span class=\"p\">:<\/span> <span class=\"nc\">UserRepository<\/span>\r\n\r\n<span class=\"err\">\u7565<\/span>\r\n\r\n    <span class=\"nd\">@PostMapping<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/add\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">addNewUser<\/span><span class=\"p\">(<\/span><span class=\"nd\">@RequestParam<\/span> <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">):<\/span> <span class=\"nc\">String<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">userRepository<\/span><span class=\"p\">.<\/span><span class=\"nf\">save<\/span><span class=\"p\">(<\/span><span class=\"nc\">User<\/span><span class=\"p\">(<\/span><span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"n\">name<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"s\">\"redirect:\/\"<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h4>\u4f7f\u7528 @PostMapping \u6ce8\u89e3<\/h4>\n<p>\u6211\u8ba4\u4e3a\u6839\u636e\u4e0a\u8ff0\u7684@GetMapping\u6ce8\u91ca\u53ef\u4ee5\u63a8\u6d4b\u51fa\uff0c\u5982\u679c\u4ee5POST\u65b9\u6cd5\u53d1\u9001\u8bf7\u6c42\u5230\/add\uff0c\u90a3\u4e48\u88ab\u6ce8\u91ca\u7684\u65b9\u6cd5\uff08\u672c\u4f8b\u4e2d\u662faddNewUser()\uff09\u5c06\u88ab\u8c03\u7528\u3002<\/p>\n<h4>@RequestParam \u662f\u4e00\u4e2a\u7528\u4e8e\u83b7\u53d6\u8bf7\u6c42\u53c2\u6570\u7684\u6ce8\u89e3\u3002<\/h4>\n<p>\u8fd9\u8868\u793a\u6307\u5b9a\u7684\u53c2\u6570\u662f\u8bf7\u6c42\u53c2\u6570\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u901a\u8fc7\u8868\u5355\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u5c06\u5b58\u50a8\u5728\u53d8\u91cfname\u4e2d\u3002<\/p>\n<h4>userRepository.save(User(0, name)) \u53ef\u4ee5\u7ffb\u8bd1\u4e3a\uff1auserRepository.save(User(0, name))<\/h4>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u5177\u6709\u4f20\u9012\u7ed9addNewUser()\u7684name\u5b57\u6bb5\u7684\u5b9e\u4f8b\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\u3002<br \/>\n\u5c06ID\u8bbe\u7f6e\u4e3a0\u7684\u90e8\u5206\u662f\u4e3a\u4e86\u907f\u514d\u5c06\u73b0\u6709\u7684ID\u653e\u5165\u5176\u4e2d\u65f6\u53d1\u751f\u66f4\u65b0\u64cd\u4f5c\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u4f20\u9012\u4e00\u4e2a\u4e0d\u5b58\u5728\u76840\uff0c\u5e76\u6267\u884c\u521b\u5efa\u64cd\u4f5c\u3002<\/p>\n<h4>\u8fd4\u56de &#8220;redirect:\/&#8221;<\/h4>\n<p>\u91cd\u5b9a\u5411\u5230\/\u3002<\/p>\n<p>\u4ee5\u4e0a\u3067\u3001\u4eca\u56de\u7684\u5e94\u7528\u7a0b\u5e8f\u5904\u7406\u5df2\u7ecf\u7ed3\u675f\u3002\u5728\u8fd9\u91cc\u6211\u7a0d\u5fae\u89e3\u91ca\u4e00\u4e0b\u5728application.properties\u4e2d\u8fdb\u884c\u7684\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\u7684\u8bbe\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"py\">spring.jpa.hibernate.ddl-auto<\/span><span class=\"p\">=<\/span><span class=\"s\">update<\/span>\r\n<span class=\"py\">spring.datasource.driver-class-name<\/span><span class=\"p\">=<\/span><span class=\"s\">org.h2.Driver<\/span>\r\n<span class=\"py\">spring.datasource.url<\/span><span class=\"p\">=<\/span><span class=\"s\">jdbc:h2:.\/h2db\/db_example<\/span>\r\n<span class=\"py\">spring.datasource.username<\/span><span class=\"p\">=<\/span><span class=\"s\">username<\/span>\r\n<span class=\"py\">spring.datasource.password<\/span><span class=\"p\">=<\/span><span class=\"s\">password<\/span>\r\n<\/code><\/pre>\n<h4>spring.jpa.hibernate.ddl-auto=update<br \/>\n-&gt; \u6625\u5b63.jpa.hibernate.ddl-auto=\u66f4\u65b0<\/h4>\n<p>\u5728\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u65f6\uff0c\u8bbe\u7f6e\u5bf9\u6570\u636e\u5e93\u6a21\u5f0f\u7684\u64cd\u4f5c\u3002\u542f\u7528\u540e\uff0c\u5b83\u4f1a\u6309\u7167\u5e26\u6709@Entity\u6ce8\u89e3\u7684\u7c7b\u751f\u6210\u6a21\u5f0f\u3002\u914d\u7f6e\u503c\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"post-table\">\u5024\u610f\u5473note\u4f55\u3082\u3057\u306a\u3044validate\u691c\u8a3c\u306e\u307f\u884c\u3046update\u5fc5\u8981\u306a\u30c6\u30fc\u30d6\u30eb\u304c\u306a\u3044\u5834\u5408\u306f\u4f5c\u6210\u3059\u308bcreate\u5fc5\u8981\u306a\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3002\u65e2\u5b58\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u524a\u9664\u3057\u3001\u65b0\u898f\u4f5c\u6210\u3059\u308bcreate-drop\u5fc5\u8981\u306a\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3002\u30bb\u30c3\u30b7\u30e7\u30f3\u7d42\u4e86\u5f8c\u306b\u524a\u9664\u3059\u308b<\/div>\n<\/div>\n<h4>spring.datasource.driver-class-name=org.h2.Driver \u8f6c\u6362\u6210\u4e2d\u6587\u7684\u4e00\u4e2a\u9009\u9879\uff1a<br \/>\nspring.datasource.driver-class-name=org.h2.Driver<\/h4>\n<p>\u8fd9\u662f\u6307\u5b9aDB\u8fde\u63a5\u9a71\u52a8\u7a0b\u5e8f\u7684\u8bbe\u7f6e\u3002<\/p>\n<h4>spring.datasource.url=jdbc:h2:\/h2db\/db_example<\/h4>\n<p>\u8fd9\u662f\u6570\u636e\u5e93\u7684\u8fde\u63a5URL\u3002\u8fd9\u6b21\u6211\u4eec\u5c06\u5176\u4fdd\u5b58\u5728\u6587\u4ef6\u4e2d\u3002<\/p>\n<h4>spring.datasource.username=\u7528\u6237\u540d<\/h4>\n<p>\u6211\u662f\u6570\u636e\u5e93\u7684\u8fde\u63a5\u7528\u6237\u3002<\/p>\n<h4>spring.datasource.password=\u5bc6\u7801<\/h4>\n<p>\u8fd9\u662f\u4e0e\u6570\u636e\u5e93\u8fde\u63a5\u7684\u5bc6\u7801\u3002<\/p>\n<h1>\u6700\u540e<\/h1>\n<p>\u6211\u7b2c\u4e00\u6b21\u5c1d\u8bd5\u4f7f\u7528\u9759\u6001\u7c7b\u578b\u7684\u7f16\u7a0b\u8bed\u8a00\u8fdb\u884cweb\u5f00\u53d1\u3002\u5c3d\u7ba1\u89c4\u6a21\u8fd8\u5f88\u5c0f\uff0c\u65e0\u6cd5\u4e0ePHP\u00d7Laravel\u8fdb\u884c\u6bd4\u8f83\uff0c\u4f46\u6211\u6253\u7b97\u5c1d\u8bd5\u4e00\u4e9b\u4e0d\u540c\u7684\u4e1c\u897f\uff0c\u627e\u51fa\u4f18\u70b9\u548c\u7f3a\u70b9\u3002\u6211\u5bf9ktor\u4e5f\u5f88\u611f\u5174\u8da3\uff0c\u5e76\u4e14\u5bf9\u5fae\u670d\u52a1\u4e5f\u5f88\u597d\u5947\uff0c\u6240\u4ee5\u5e0c\u671b\u80fd\u591f\u5b66\u4e60\u5e76\u6df1\u5165\u7814\u7a76\u5b83\u4eec\u3002<\/p>\n<h1>\u4ee5\u4e0b\u662f\u53ef\u4ee5\u53c2\u8003\u7684\u4fe1\u606f\u3002<\/h1>\n<p>\u6a2a\u5c71\u606d\u5927\u57282019\u5e74\u51fa\u7248\u4e86\u300a\u5165\u95e8\uff01\u5b9e\u8df5\uff01\u670d\u52a1\u5668\u7aefKotlin\u300b\u4e00\u4e66\uff0c\u7531\u682a\u5f0f\u4f1a\u793e\u30a4\u30f3\u30d7\u30ec\u30b9 R&amp;D\u51fa\u7248\u3002\u8be5\u4e66\u4ecb\u7ecd\u4e86\u4f7f\u7528Spring Boot\u548cKotlin\u6784\u5efaWeb\u5e94\u7528\u7a0b\u5e8f\u7684\u65b9\u6cd5\uff0c\u5e76\u8bb0\u5f55\u4e86\u4f7f\u7528Thymeleaf\u548cSpring 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