{"id":41467,"date":"2023-05-17T00:24:04","date_gmt":"2023-11-23T13:54:59","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8springboot-react%ef%bc%88typescript%ef%bc%89-postgresql%e5%88%9b%e5%bb%ba%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e3%80%90rest-api%e5%bc%80%e5%8f%91\/"},"modified":"2024-04-30T04:32:42","modified_gmt":"2024-04-29T20:32:42","slug":"%e6%88%91%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8springboot-react%ef%bc%88typescript%ef%bc%89-postgresql%e5%88%9b%e5%bb%ba%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e3%80%90rest-api%e5%bc%80%e5%8f%91","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b0%9d%e8%af%95%e4%bd%bf%e7%94%a8springboot-react%ef%bc%88typescript%ef%bc%89-postgresql%e5%88%9b%e5%bb%ba%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e3%80%90rest-api%e5%bc%80%e5%8f%91\/","title":{"rendered":"\u6211\u5c1d\u8bd5\u4f7f\u7528Springboot + React\uff08Typescript\uff09+ PostgreSQL\u521b\u5efa\u5e94\u7528\u7a0b\u5e8f\u3010REST API\u5f00\u53d1\u3011"},"content":{"rendered":"<h2>1. \u521b\u5efa\u4e00\u4e2a\u9879\u76ee y\u012b g\u00e8<\/h2>\n<p>\u516c\u5f0f\uff1aSpring\u521d\u59cb\u88c5\u7f6e\u5668<\/p>\n<p>1. \u6253\u5f00\u6d4f\u89c8\u5668\uff0c\u8f93\u5165\u5e76\u6253\u5f00\u7f51\u5740(https:\/\/start.spring.io\/)\u3002<br \/>\n2. \u8f93\u5165\u4ee5\u4e0b\u5185\u5bb9\uff0c\u4ece\u4f9d\u8d56\u9879\u4e2d\u9009\u62e9\u4ee5\u4e0b\u9009\u9879\uff0c\u70b9\u51fb\u300e\u751f\u6210\u300f\u6309\u94ae\u3002<\/p>\n<p>\u9879\u76ee\uff1aMaven<\/p>\n<p>\u8bed\u8a00\uff1aJava<\/p>\n<p>SpringBoot: \u7248\u672c\u53f73.1.1<\/p>\n<p>\u7ec4\uff1acom.postgresql<\/p>\n<p>\u7269\u54c1\uff1a\u83dc\u5355<\/p>\n<p>\u540d\u79f0\uff1a\u83dc\u5355<\/p>\n<p>Alternatively: \u540d\u5b57\uff1a\u83dc\u5355<\/p>\n<p>\u63cf\u8ff0\uff1a\u6570\u5b57\u83dc\u5355<\/p>\n<p>\u5305\u540d: com.postgresql.cardapio<\/p>\n<p>\u4f9d\u8d56<\/p>\n<p>Spring Boot DevTools &#8211; Spring Boot\u5f00\u53d1\u5de5\u5177<br \/>\nSpring Web &#8211; Spring Web\u6846\u67b6<br \/>\nLombok &#8211; Lombok\u5de5\u5177<br \/>\nSpring Data JPA &#8211; Spring Data JPA\u6846\u67b6<br \/>\nPostgreSQL Driver &#8211; PostgreSQL\u6570\u636e\u5e93\u9a71\u52a8<\/p>\n<p>\u70b9\u51fbVscode\u5de6\u4e0b\u89d2\u7684\u300eMaven\u300f\u2192\u300ecardapio\u300f\u2192\u300eLifecycle\u300f\u2192\u300epackeage\u300f\u3002<\/p>\n<h2>2. \u8fdb\u884c\u540e\u7aef\u5f00\u53d1<\/h2>\n<p>\u5728src\/main\/java\/com\/postgresql\/cardapio\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aFoodController.java\u7684controller\u6587\u4ef6\u3002<\/p>\n<p>\u8bf7\u4fee\u6539application.properties\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"py\">spring.datasource.url<\/span><span class=\"p\">=<\/span><span class=\"s\">jdbc:postgresql:\/\/localhost:5432\/food<\/span>\r\n<span class=\"py\">spring.datasource.username<\/span><span class=\"p\">=<\/span><span class=\"s\">fernandkipper<\/span>\r\n<span class=\"py\">spring.datasource.password<\/span><span class=\"p\">=<\/span><span class=\"s\">password<\/span>\r\n<\/code><\/pre>\n<p>\u5728src\/main\/java\/com\/postgresql\/cardapio\u8def\u5f84\u4e0b\uff0c\u521b\u5efa\u540d\u4e3aFood.java\u7684food\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">com.postgresql.cardapio.food<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">jakarta.persistence.*<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Table<\/span><span class=\"o\">(<\/span><span class=\"n\">name<\/span><span class=\"o\">=<\/span><span class=\"s\">\"foods\"<\/span><span class=\"o\">)<\/span>\r\n<span class=\"nd\">@Entity<\/span><span class=\"o\">(<\/span><span class=\"n\">name<\/span><span class=\"o\">=<\/span><span class=\"s\">\"foods\"<\/span><span class=\"o\">)<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Food<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nd\">@Id<\/span> <span class=\"nd\">@GeneratedValue<\/span><span class=\"o\">(<\/span><span class=\"n\">strategy<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">GenerationType<\/span><span class=\"o\">.<\/span><span class=\"na\">IDENTITY<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">Long<\/span> <span class=\"n\">id<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">Long<\/span> <span class=\"n\">title<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">Long<\/span> <span class=\"n\">image<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">Long<\/span> <span class=\"n\">price<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728src\/main\/java\/com\/postgresql\/cardapio\/food\u4e2d\u521b\u5efaFoodRepository.java\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">com.postgresql.cardapio.food<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.data.jpa.repository.JpaRepository<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">interface<\/span> <span class=\"nc\">FoodRepository<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">JpaRepository<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Food<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Long<\/span><span class=\"o\">&gt;{<\/span>\r\n    \r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aFoodController.java\u7684\u6587\u4ef6\uff0c\u8def\u5f84\u4e3asrc\/main\/java\/com\/postgresql\/cardapio\/controller\/\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">com.postgresql.cardapio.controller<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">com.postgresql.cardapio.food.Food<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">com.postgresql.cardapio.food.FoodRepository<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">com.postgresql.cardapio.food.FoodResponseDTO<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">com.postgresql.cardapio.food.FoodRequestDTO<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.beans.factory.annotation.Autowired<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.web.bind.annotation.CrossOrigin<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.web.bind.annotation.GetMapping<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.web.bind.annotation.RequestBody<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.web.bind.annotation.RequestMapping<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">org.springframework.web.bind.annotation.RestController<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.util.List<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@RestController<\/span>\r\n<span class=\"nd\">@RequestMapping<\/span><span class=\"o\">(<\/span><span class=\"s\">\"food\"<\/span><span class=\"o\">)<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">FoodController<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"nd\">@Autowired<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">FoodRepository<\/span> <span class=\"n\">repository<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"nd\">@CrossOrigin<\/span><span class=\"o\">(<\/span><span class=\"n\">origins<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"*\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">allowedHeaders<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"*\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"nd\">@GetMapping<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">saveFood<\/span><span class=\"o\">(<\/span><span class=\"nd\">@RequestBody<\/span> <span class=\"nc\">FoodRequestDTO<\/span> <span class=\"n\">data<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">Food<\/span> <span class=\"n\">foodData<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Food<\/span><span class=\"o\">(<\/span><span class=\"n\">data<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">repository<\/span><span class=\"o\">.<\/span><span class=\"na\">save<\/span><span class=\"o\">(<\/span><span class=\"n\">foodData<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"k\">return<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"nd\">@CrossOrigin<\/span><span class=\"o\">(<\/span><span class=\"n\">origins<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"*\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">allowedHeaders<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"*\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"nd\">@GetMapping<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">FoodResponseDTO<\/span><span class=\"o\">&gt;<\/span> <span class=\"nf\">getAll<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n\r\n        <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">FoodResponseDTO<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">foodList<\/span> <span class=\"o\">=<\/span> <span class=\"n\">repository<\/span><span class=\"o\">.<\/span><span class=\"na\">findAll<\/span><span class=\"o\">().<\/span><span class=\"na\">stream<\/span><span class=\"o\">().<\/span><span class=\"na\">map<\/span><span class=\"o\">(<\/span><span class=\"nl\">FoodResponseDTO:<\/span><span class=\"o\">:<\/span><span class=\"k\">new<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">foodList<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6309\u4e0b\u300c\u8fd0\u884cJava\u300d\u6309\u94ae<\/p>\n<p>\u5728src\/main\/java\/com\/postgresql\/cardapio\/food\u4e2d\u521b\u5efaFoodResponseDTO.java\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">com.postgresql.cardapio.food<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"n\">record<\/span> <span class=\"nf\">FoodResponseDTO<\/span><span class=\"o\">(<\/span><span class=\"nc\">Long<\/span> <span class=\"n\">id<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">title<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">image<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Integer<\/span> <span class=\"n\">price<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"nf\">FoodResponseDTO<\/span><span class=\"o\">(<\/span><span class=\"nc\">Food<\/span> <span class=\"n\">food<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">(<\/span><span class=\"n\">food<\/span><span class=\"o\">.<\/span><span class=\"na\">getId<\/span><span class=\"o\">(),<\/span> <span class=\"n\">food<\/span><span class=\"o\">.<\/span><span class=\"na\">getTitle<\/span><span class=\"o\">(),<\/span> <span class=\"n\">food<\/span><span class=\"o\">.<\/span><span class=\"na\">getImage<\/span><span class=\"o\">(),<\/span> <span class=\"n\">food<\/span><span class=\"o\">.<\/span><span class=\"na\">getPrice<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u76f4\u63a5\u7f16\u8f91\u4f4d\u4e8e\u201csrc\/main\/java\/com\/postgresql\/cardapio\/food\u201d\u7684Food.java\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">com.postgresql.cardapio.food<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">jakarta.persistence.*<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">lombok.AllArgsConstructor<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">lombok.EqualsAndHashCode<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">lombok.Getter<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">lombok.NoArgsConstructor<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"nd\">@Table<\/span><span class=\"o\">(<\/span><span class=\"n\">name<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"foods\"<\/span><span class=\"o\">)<\/span>\r\n<span class=\"nd\">@Entity<\/span><span class=\"o\">(<\/span><span class=\"n\">name<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"foods\"<\/span><span class=\"o\">)<\/span>\r\n<span class=\"nd\">@Getter<\/span>\r\n<span class=\"nd\">@NoArgsConstructor<\/span>\r\n<span class=\"nd\">@AllArgsConstructor<\/span>\r\n<span class=\"nd\">@EqualsAndHashCode<\/span><span class=\"o\">(<\/span><span class=\"n\">of<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"id\"<\/span><span class=\"o\">)<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Food<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nd\">@Id<\/span>\r\n    <span class=\"nd\">@GeneratedValue<\/span><span class=\"o\">(<\/span><span class=\"n\">strategy<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">GenerationType<\/span><span class=\"o\">.<\/span><span class=\"na\">IDENTITY<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">Long<\/span> <span class=\"n\">id<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">title<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">image<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">Integer<\/span> <span class=\"n\">price<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"nf\">Food<\/span><span class=\"o\">(<\/span><span class=\"nc\">FoodRequestDTO<\/span> <span class=\"n\">data<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">image<\/span> <span class=\"o\">=<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"na\">image<\/span><span class=\"o\">();<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">price<\/span> <span class=\"o\">=<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"na\">price<\/span><span class=\"o\">();<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">title<\/span> <span class=\"o\">=<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"na\">title<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u9700\u8981\u4fee\u6539\u4f4d\u4e8esrc\/main\/java\/com\/postgresql\/cardapio\/food\u7684FoodResponseDTO.java\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">com.postgresql.cardapio.food<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"n\">record<\/span> <span class=\"nf\">FoodResponseDTO<\/span><span class=\"o\">(<\/span><span class=\"nc\">Long<\/span> <span class=\"n\">id<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">title<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">image<\/span><span class=\"o\">,<\/span> <span class=\"nc\">Integer<\/span> <span class=\"n\">price<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"nf\">FoodResponseDTO<\/span><span class=\"o\">(<\/span><span class=\"nc\">Food<\/span> <span class=\"n\">food<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">(<\/span><span class=\"n\">food<\/span><span class=\"o\">.<\/span><span class=\"na\">getId<\/span><span class=\"o\">(),<\/span> <span class=\"n\">food<\/span><span class=\"o\">.<\/span><span class=\"na\">getTitle<\/span><span class=\"o\">(),<\/span> <span class=\"n\">food<\/span><span class=\"o\">.<\/span><span class=\"na\">getImage<\/span><span class=\"o\">(),<\/span> <span class=\"n\">food<\/span><span class=\"o\">.<\/span><span class=\"na\">getPrice<\/span><span class=\"o\">());<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u5f00\u53d1\u524d\u7aef<\/h2>\n<h2>\u53c2\u8003\u7f51\u7ad9<\/h2>\n<p>\u4ece\u96f6\u5f00\u59cb\u4f7f\u7528Java Spring\u548cReact\u521b\u5efa\u5168\u6808\u5e94\u7528\u7a0b\u5e8f-\u7b2c\u4e00\u90e8\u5206\uff1a\u540e\u7aef\u5f00\u53d1<br \/>\n\u4ece\u96f6\u5f00\u59cb\u521b\u5efa\u5168\u6808\u5e94\u7528\u7a0b\u5e8f-\u7b2c\u4e8c\u90e8\u5206\uff1a\u4f7f\u7528React\u548cTypescript\u5f00\u53d1\u524d\u7aef<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u521b\u5efa\u4e00\u4e2a\u9879\u76ee y\u012b g\u00e8 \u516c\u5f0f\uff1aSpring\u521d\u59cb\u88c5\u7f6e\u5668 1. 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