{"id":8524,"date":"2022-11-14T19:54:27","date_gmt":"2022-11-14T11:54:27","guid":{"rendered":"http:\/\/123.57.164.21\/?p=8524"},"modified":"2022-11-14T20:54:12","modified_gmt":"2022-11-14T12:54:12","slug":"jpa-%e5%92%8c-mybatis","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=8524","title":{"rendered":"Jpa \u548c mybatis"},"content":{"rendered":"\n<p><strong>\u4e00\u3001JPA<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>1. \u7b80\u5355\u4ecb\u7ecd<\/strong><\/p>\n\n\n\n<p>\u4f5c\u4e3a\u89c4\u8303\uff0c<a rel=\"noreferrer noopener\" href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/jcp.org\/en\/jsr\/detail%3Fid%3D338\" target=\"_blank\">Java Persistence API<\/a>\u5173\u6ce8<em>\u6301\u4e45\u6027<\/em>\uff0c\u5b83\u5c06Java\u5bf9\u8c61\u7684\u521b\u5efa\u8fc7\u7a0b\u548c\u5177\u4f53\u7684\u521b\u5efa\u5f62\u5f0f\u89e3\u8026\u3002\u5e76\u975e\u6240\u6709Java\u5bf9\u8c61\u90fd\u9700\u8981\u6301\u4e45\u5316\uff0c\u4f46\u5927\u591a\u6570\u5e94\u7528\u7a0b\u5e8f\u90fd\u4f1a\u4fdd\u7559\u5173\u952e\u4e1a\u52a1\u5bf9\u8c61\u3002JPA\u89c4\u8303\u5141\u8bb8\u60a8\u5b9a\u4e49\u5e94\u8be5\u4fdd\u7559<em>\u54ea\u4e9b<\/em>\u5bf9\u8c61\uff0c\u4ee5\u53ca<em>\u5982\u4f55<\/em>\u5728Java\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4fdd\u7559\u8fd9\u4e9b\u5bf9\u8c61\u3002<\/p>\n\n\n\n<p>Java\u6301\u4e45\u6027API(JPA)\u662fJava\u7684\u4e00\u4e2a\u89c4\u8303\u3002 \u5b83\u7528\u4e8e\u5728Java\u5bf9\u8c61\u548c\u5173\u7cfb\u6570\u636e\u5e93\u4e4b\u95f4\u4fdd\u5b58\u6570\u636e\u3002 JPA\u5145\u5f53\u9762\u5411\u5bf9\u8c61\u7684\u9886\u57df\u6a21\u578b\u548c\u5173\u7cfb\u6570\u636e\u5e93\u7cfb\u7edf\u4e4b\u95f4\u7684\u6865\u6881\u3002<\/p>\n\n\n\n<p>\u7531\u4e8eJPA\u53ea\u662f\u4e00\u4e2a\u89c4\u8303\uff0c\u5b83\u672c\u8eab\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u3002 \u5b83\u9700\u8981\u4e00\u4e2a\u5b9e\u73b0\u3002 \u56e0\u6b64\uff0c\u50cf<a href=\"http:\/\/www.yiibai.com\/hibernate\/\">Hibernate<\/a>\uff0cTopLink\u548ciBatis\u8fd9\u6837\u7684ORM\u5de5\u5177\u5b9e\u73b0\u4e86JPA\u6570\u636e\u6301\u4e45\u6027\u89c4\u8303\u3002<\/p>\n\n\n\n<p>JPA\u672c\u8eab\u4e0d\u662f\u4e00\u4e2a\u5de5\u5177\u6216\u6846\u67b6; \u76f8\u53cd\uff0c\u5b83\u5b9a\u4e49\u4e86\u4e00\u7ec4\u53ef\u4ee5\u7531\u4efb\u4f55\u5de5\u5177\u6216\u6846\u67b6\u5b9e\u73b0\u7684\u6982\u5ff5\u3002\u867d\u7136JPA\u7684\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff08ORM\uff09\u6a21\u578b\u6700\u521d\u57fa\u4e8e<a href=\"https:\/\/link.zhihu.com\/?target=http%3A\/\/hibernate.org\/orm\/\" target=\"_blank\" rel=\"noreferrer noopener\">Hibernate<\/a>\uff0c\u4f46\u5b83\u5df2\u7ecf\u53d1\u5c55\u4e86\u3002\u540c\u6837\uff0c\u867d\u7136JPA\u6700\u521d\u6253\u7b97\u7528\u4e8e\u5173\u7cfb\/ SQL\u6570\u636e\u5e93\uff0c\u4f46\u662f\u4e00\u4e9bJPA\u5b9e\u73b0\u5df2\u7ecf\u6269\u5c55\u7528\u4e8eNoSQL\u6570\u636e\u5b58\u50a8\u3002\u652f\u6301JPA\u548cNoSQL\u7684\u6d41\u884c\u6846\u67b6\u662f<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/www.eclipse.org\/eclipselink\" target=\"_blank\" rel=\"noreferrer noopener\">EclipseLink<\/a>\uff0c\u5b83\u662fJPA 2.2\u7684\u53c2\u8003\u5b9e\u73b0\u3002<\/p>\n\n\n\n<ul><li>JPA\u662fJava Persistence API\u7684\u7b80\u79f0\uff0c\u4e2d\u6587\u540dJava\u6301\u4e45\u5c42API \u3002<\/li><li>\u662f Java EE 5.0 \u5e73\u53f0\u6807\u51c6\u7684 ORM\u89c4\u8303\uff0c\u4f7f\u5f97\u5e94\u7528\u7a0b\u5e8f\u4ee5\u7edf\u4e00\u7684\u65b9\u5f0f\u8bbf\u95ee\u6301\u4e45\u5c42\u3002\u65e2\u7136\u662f\u89c4\u8303\uff0c\u90a3\u80af\u5b9a\u5c31\u9700\u8981\u6280\u672f\u6765\u5b9e\u73b0\u8fd9\u4e2a\u89c4\u8303\uff0c\u6240\u4ee5Hibernate3.2+\u3001TopLink 10.1.3\u4ee5\u53caOpenJPA\u90fd\u63d0\u4f9b\u4e86JPA\u7684\u5b9e\u73b0\u3002<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-212-768x1024.png\" alt=\"\" class=\"wp-image-8534\" width=\"384\" height=\"512\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-212-768x1025.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-212-225x300.png 225w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-212-830x1107.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-212-230x307.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-212-350x467.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-212-480x640.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-212.png 934w\" sizes=\"(max-width: 384px) 100vw, 384px\" \/><\/figure><\/div>\n\n\n\n<p><strong>2. JPA\u7684\u4f18\u52bf<\/strong><\/p>\n\n\n\n<ul><li><strong>\u6807\u51c6\u5316<\/strong> \uff1a\u63d0\u4f9b\u76f8\u540c\u7684\u8bbf\u95eeAPI\uff0c\u4fdd\u8bc1\u4e86\u57fa\u4e8eJPA\u5f00\u53d1\u7684\u4f01\u4e1a\u5e94\u7528\u80fd\u591f\u7ecf\u8fc7\u5c11\u91cf\u7684\u4fee\u6539\u5c31\u80fd\u591f\u5728\u4e0d\u540c\u7684JPA\u6846\u67b6\u4e0b\u8fd0\u884c\u3002<\/li><li><strong>\u7b80\u5355\u6613\u7528\uff0c\u96c6\u6210\u65b9\u4fbf<\/strong> \uff1aJPA\u7684\u4e3b\u8981\u76ee\u6807\u4e4b\u4e00\u5c31\u662f\u63d0\u4f9b\u66f4\u52a0\u7b80\u5355\u7684\u7f16\u7a0b\u6a21\u578b\uff1a\u5728JPA\u6846\u67b6\u4e0b\u521b\u5efa\u5b9e\u4f53\u548c\u521b\u5efaJava \u7c7b\u4e00\u6837\u7b80\u5355\uff0c\u6ca1\u6709\u4efb\u4f55\u7684\u7ea6\u675f\u548c\u9650\u5236\uff0c\u53ea\u9700\u8981\u4f7f\u7528 javax.persistence.Entity\u8fdb\u884c\u6ce8\u91ca\uff0cJPA\u7684\u6846\u67b6\u548c\u63a5\u53e3\u4e5f\u90fd\u975e\u5e38\u7b80\u5355\u3002<\/li><li>\u548cJDBC\u7684\u67e5\u8be2\u80fd\u529b\u5dee\u4e0d\u591a \uff1aJPA\u7684\u67e5\u8be2\u8bed\u8a00\u662f\u9762\u5411\u5bf9\u8c61\u800c\u975e\u9762\u5411\u6570\u636e\u5e93\u7684\uff0cJPA\u5b9a\u4e49\u4e86\u72ec\u7279\u7684JPQL\uff08Java Persistence Query Language\uff09\uff0cJPQL\u662fEJB QL\u7684\u4e00\u79cd\u6269\u5c55\uff0c\u5b83\u662f\u9488\u5bf9\u5b9e\u4f53\u7684\u4e00\u79cd\u67e5\u8be2\u8bed\u8a00\uff0c\u64cd\u4f5c\u5bf9\u8c61\u662f\u5b9e\u4f53\uff0c\u800c\u4e0d\u662f\u5173\u7cfb\u6570\u636e\u5e93\u7684\u8868\uff0c\u800c\u4e14\u80fd\u591f\u652f\u6301\u6279\u91cf\u66f4\u65b0\u548c\u4fee\u6539\u3001JOIN\u3001GROUP BY\u3001HAVING \u7b49\u901a\u5e38\u53ea\u6709 SQL \u624d\u80fd\u591f\u63d0\u4f9b\u7684\u9ad8\u7ea7\u67e5\u8be2\u7279\u6027\uff0c\u751a\u81f3\u8fd8\u80fd\u591f\u652f\u6301\u5b50\u67e5\u8be2\u3002<\/li><\/ul>\n\n\n\n<ul><li>\u652f\u6301\u9762\u5411\u5bf9\u8c61\u7684\u9ad8\u7ea7\u7279\u6027 \uff1aJPA \u4e2d\u80fd\u591f\u652f\u6301\u9762\u5411\u5bf9\u8c61\u7684\u9ad8\u7ea7\u7279\u6027\uff0c\u5982\u7c7b\u4e4b\u95f4\u7684\u7ee7\u627f\u3001\u591a\u6001\u548c\u7c7b\u4e4b\u95f4\u7684\u590d\u6742\u5173\u7cfb\uff0c\u8fd9\u6837\u7684\u652f\u6301\u80fd\u591f\u8ba9\u5f00\u53d1\u8005\u6700\u5927\u9650\u5ea6\u7684\u4f7f\u7528\u9762\u5411\u5bf9\u8c61\u7684\u6a21\u578b\u3002\u9762\u5411\u5bf9\u8c61\u4e5f\u907f\u514d\u4e86\u7a0b\u5e8f\u4e0e\u6570\u636e\u5e93 SQL \u8bed\u53e5\u8026\u5408\u4e25\u91cd\uff0c\u6bd4\u8f83\u9002\u5408\u8de8\u6570\u636e\u6e90\u7684\u573a\u666f\uff08\u4e00\u4f1a\u513f MySQL\uff0c\u4e00\u4f1a\u513f Oracle \u7b49\uff09\u3002<\/li><\/ul>\n\n\n\n<p><strong>3. \u7528JPA\u521b\u5efa\u5b9e\u4f53\u7c7b<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ lombok\u6ce8\u89e3\uff0c\u81ea\u52a8\u751f\u6210get\u3001set\u65b9\u6cd5\n@Data\n\/\/ \u751f\u6210\u65e0\u53c2\u6784\u9020\u51fd\u6570\u7684\u6ce8\u89e3\n@NoArgsConstructor\n\/\/ \u751f\u6210\u6709\u53c2\u6784\u9020\u51fd\u6570\u7684\u6ce8\u89e3\n@AllArgsConstructor\n@Entity\n\/\/ @Table\u6ce8\u89e3\u662f\u786e\u5b9a\u8868\u540d\uff0c\u4e0d\u5199\u8fd9\u4e2a\u6ce8\u89e3\u7684\u8bdd\uff0c\u9ed8\u8ba4\u7c7b\u540d\u5c31\u662f\u8868\u540d\n@Table (name =\"user\")\npublic class User  implements Serializable {\n\t\/\/ \u5e8f\u5217\u5316\uff0c\u8981\u7ee7\u627f\u4e0a\u9762\u7684\u5e8f\u5217\u5316\u63a5\u53e3\n\tprivate static final long serialVersionUID =  524258970393766098L;\n\n\t\/**\n\t * \u81ea\u589eid\n\t *\/\n\t \/\/ \u6307\u5b9a\u5217\u540d\n   \t@Column(name = \"user_id\" )\n\t@Id\n\tprivate Long userId;\n\n\t\/**\n\t * \u767b\u5f55\u540d\n\t *\/\n   \t@Column(name = \"username\" )\n\tprivate String username;\n\t\n\t\/**\n\t * \u767b\u5f55\u5bc6\u7801\n\t *\/\n   \t@Column(name = \"password\" )\n\tprivate String password;\n\n\t\/**\n\t * \u6027\u522b\n\t *\/\n   \t@Column(name = \"user_sex\" )\n\tprivate String userSex;\n\n\t\/**\n\t * \u624b\u673a\n\t *\/\n   \t@Column(name = \"user_tel\" )\n\tprivate String userTel;\n\n\t\/**\n\t * \u7231\u597d\n\t *\/\n   \t@Column(name = \"user_hobby\" )\n\tprivate String userHobby;\n\n\t\/**\n\t * \u521b\u5efa\u65f6\u95f4\n\t *\/\n   \t@Column(name = \"create_time\" )\n\tprivate Long createTime;\n\n\t\/**\n\t * \u4fee\u6539\u65f6\u95f4\n\t *\/\n   \t@Column(name = \"update_time\" )\n\tprivate Long updateTime;\n\n}\n<\/pre>\n\n\n\n<p><strong>4. \u7528JPA\u4e66\u5199repository\u5c42<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public interface CreditRepository extends PagingAndSortingRepository&lt;CreditDO, Long> {\n    List&lt;CreditDO> findCreditDOSByUcc(String ucc);\n\n    Page&lt;CreditDO> findAllByUcc(String ucc, Pageable pageable);\n\n    Long countAllByCreatedAtAfterAndCreatedAtBeforeAndTypeAndUcc(Date after, Date before, CREDIT_TYPE t, String ucc);\n\n    CreditDO findCreditDOById(Long creditId);\n\n    Boolean existsCreditDOByUccAndType(String ucc, CREDIT_TYPE t);\n\n}\n<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">package com.lm.jpaDemo.repositroy;\n\nimport com.lm.jpaDemo.entities.User;\nimport org.springframework.data.jpa.repository.JpaRepository;\nimport org.springframework.data.jpa.repository.Modifying;\nimport org.springframework.data.jpa.repository.Query;\nimport org.springframework.data.repository.CrudRepository;\n\npublic interface UserRepository extends JpaRepository&lt;User, Integer>, CrudRepository&lt;User, Integer> {\n\n\n    \/**\n     * \u81ea\u5b9a\u4e49\u7684\u67e5\u8be2\u65b9\u6cd5\n     * @return\n     *\/\n    @Query(\"select u from User u where u.username = ?1\")\n    public User findByName();\n\n\n    \/**\n     * \u4f7f\u7528hql\u8fdb\u884c\u5220\u9664\u64cd\u4f5c\n     * @param id\n     *\/\n    @Modifying\n    @Query(\"delete from User u where u.userId = ?1\")\n    public void deleteById(Integer id);\n\n    \/**\n     * \u4f7f\u7528sql\u8fdb\u884c\u5220\u9664\u64cd\u4f5c\n     * nativeQuery = true\u5c5e\u6027\u6807\u8bc6\u542f\u7528sql\u64cd\u4f5c\uff0c\u5373value\u4e2d\u5199\u64cd\u4f5c\u5c06\u88ab\u5f53\u4f5csql\u8bed\u53e5\u8fdb\u884c\u64cd\u4f5c\uff0c\u800c\u4e0d\u662fhql\u8bed\u53e5\n     * @param id\n     *\/\n    @Modifying\n    @Query(value = \"delete from User u where u.user_id = ?1\", nativeQuery = true)\n    public void deleteById2(Integer id);\n<\/pre>\n\n\n\n<p><strong>\u4e8c\u3001mybatis<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>1. \u7b80\u5355\u4ecb\u7ecd<\/strong><\/p>\n\n\n\n<ul><li>MyBatis \u662f\u652f\u6301\u666e\u901a SQL\u67e5\u8be2\uff0c\u5b58\u50a8\u8fc7\u7a0b\u548c\u9ad8\u7ea7\u6620\u5c04\u7684\u4f18\u79c0\u6301\u4e45\u5c42\u6846\u67b6\u3002<\/li><li>MyBatis \u6d88\u9664\u4e86\u51e0\u4e4e\u6240\u6709\u7684JDBC\u4ee3\u7801\u548c\u53c2\u6570\u7684\u624b\u5de5\u8bbe\u7f6e\u4ee5\u53ca\u7ed3\u679c\u96c6\u7684\u68c0\u7d22\u3002<\/li><li>MyBatis \u4f7f\u7528\u7b80\u5355\u7684 XML\u6216\u6ce8\u89e3\u7528\u4e8e\u914d\u7f6e\u548c\u539f\u59cb\u6620\u5c04\uff0c\u5c06\u63a5\u53e3\u548c Java \u7684POJOs\uff08Plain Ordinary Java Objects\uff0c\u666e\u901a\u7684 Java\u5bf9\u8c61\uff09\u6620\u5c04\u6210\u6570\u636e\u5e93\u4e2d\u7684\u8bb0\u5f55\u3002<\/li><\/ul>\n\n\n\n<p><strong>2. mybatis\u7684\u4f18\u52bf<\/strong><\/p>\n\n\n\n<ul><li>\u7b80\u5355\u6613\u5b66\uff1a\u672c\u8eab\u5c31\u5f88\u5c0f\u4e14\u7b80\u5355\u3002\u6ca1\u6709\u4efb\u4f55\u7b2c\u4e09\u65b9\u4f9d\u8d56\uff0c\u6700\u7b80\u5355\u5b89\u88c5\u53ea\u8981\u4e24\u4e2ajar\u6587\u4ef6+\u914d\u7f6e\u51e0\u4e2asql\u6620\u5c04\u6587\u4ef6\u3002<\/li><li>\u7075\u6d3b\uff1amybatis\u4e0d\u4f1a\u5bf9\u5e94\u7528\u7a0b\u5e8f\u6216\u8005\u6570\u636e\u5e93\u7684\u73b0\u6709\u8bbe\u8ba1\u5f3a\u52a0\u4efb\u4f55\u5f71\u54cd\u3002<\/li><li>sql\u5199\u5728xml\u91cc\uff0c\u4fbf\u4e8e\u7edf\u4e00\u7ba1\u7406\u548c\u4f18\u5316 \uff1a \u901a\u8fc7sql\u8bed\u53e5\u53ef\u4ee5\u6ee1\u8db3\u64cd\u4f5c\u6570\u636e\u5e93\u7684\u6240\u6709\u9700\u6c42\u3002<\/li><li>\u89e3\u9664sql\u4e0e\u7a0b\u5e8f\u4ee3\u7801\u7684\u8026\u5408\uff1a\u901a\u8fc7\u63d0\u4f9bDAO\u5c42\uff0c\u5c06\u4e1a\u52a1\u903b\u8f91\u548c\u6570\u636e\u8bbf\u95ee\u903b\u8f91\u5206\u79bb\uff0c\u4f7f\u7cfb\u7edf\u7684\u8bbe\u8ba1\u66f4\u6e05\u6670\uff0c\u66f4\u6613\u7ef4\u62a4\uff0c\u66f4\u6613\u5355\u5143\u6d4b\u8bd5\u3002sql\u548c\u4ee3\u7801\u7684\u5206\u79bb\uff0c\u63d0\u9ad8\u4e86\u53ef\u7ef4\u62a4\u6027\u3002<\/li><li>\u63d0\u4f9b\u6620\u5c04\u6807\u7b7e\uff0c\u652f\u6301\u5bf9\u8c61\u4e0e\u6570\u636e\u5e93\u7684orm\u5b57\u6bb5\u5173\u7cfb\u6620\u5c04 \uff1a \u63d0\u4f9b\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\u6807\u7b7e\uff0c\u652f\u6301\u5bf9\u8c61\u5173\u7cfb\u7ec4\u5efa\u7ef4\u62a4\u3002 \u63d0\u4f9bxml\u6807\u7b7e\uff0c\u652f\u6301\u7f16\u5199\u52a8\u6001sql\u3002<\/li><\/ul>\n\n\n\n<p><strong>3. \u7528mybatis\u521b\u5efa\u7684\u5b9e\u4f53\u7c7b<\/strong><\/p>\n\n\n\n<p>\u5b9e\u4f53\u7c7b\u4e2d\u7684\u53c2\u6570\u548c\u6570\u636e\u5e93\u8868\u4e2d\u7684\u53c2\u6570\u4e00\u4e00\u5bf9\u5e94\u3002\u6839\u636e\u6570\u636e\u5e93\u5efa\u8868\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class User implements Serializable {\n\t\t\n\tprivate int id ;\n\tprivate String username;\n\t......\n}\n\n<\/pre>\n\n\n\n<p>4. \u7528mybatis\u521b\u5efamapper\u5c42<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public interface IUserMapper {\n\t\/**\n\t* \u67e5\u8be2\u6240\u6709\u64cd\u4f5c\n\t* @return\n\t*\/\n\tList&lt;User> findAll();\n}\n<\/pre>\n\n\n\n<p>5. \u521b\u5efa\u521b\u5efamybatis\u7684\u4e3b\u914d\u7f6e\u6587\u4ef6<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;configuration>\n    &lt;!--\u914d\u7f6e\u73af\u5883-->\n    &lt;environments default=\"mysql\">\n        &lt;!--\u914d\u7f6eMysql\u7684\u73af\u5883-->\n        &lt;environment id=\"mysql\">\n            &lt;!--\u914d\u7f6e\u4e8b\u52a1\u7684\u7c7b\u578b-->\n            &lt;transactionManager type=\"JDBC\">&lt;\/transactionManager>\n            &lt;!--\u914d\u7f6e\u6570\u636e\u6e90(\u8fde\u63a5\u6c60)-->\n            &lt;dataSource type=\"POOLED\">\n                &lt;!--\u914d\u7f6e\u8fde\u63a5\u6570\u636e\u5e93\u7684\u56db\u4e2a\u57fa\u672c\u4fe1\u606f-->\n                &lt;property name=\"driver\" value=\"com.mysql.jdbc.Driver\" \/>\n                &lt;property name=\"url\" value=\"jdbc:mysql:\/\/localhost:3306\/db1\" \/>\n                &lt;property name=\"username\" value=\"root\" \/>\n                &lt;property name=\"password\" value=\"a\" \/>\n            &lt;\/dataSource>\n        &lt;\/environment>\n    &lt;\/environments>\n\n    &lt;mappers>\n        &lt;mapper resource=\"Mybatis\/IuserMapper.xml\" \/>\n    &lt;\/mappers>\n\n&lt;\/configuration>\n\n<\/pre>\n\n\n\n<p>6. \u521b\u5efamybatis\u6620\u5c04\u914d\u7f6e\u6587\u4ef6<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;mapper namespace=\"com.Mapper.IUserMapper\" >\n    &lt;select id=\"findAll\" resultType=\"com.Pojo.User\" >\n        select * from usr\n    &lt;\/select>\n&lt;\/mapper>\n<\/pre>\n\n\n\n<p>7. \u7f16\u5199\u6d4b\u8bd5\u7c7b<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">......\n\nInputStream in = Resources.getResourceAsStream(\"mybatis\/MapperConfig.xml\");\n\/\/\u521b\u5efaSqlSessionFactory\u5de5\u5382\nSqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();\nSqlSessionFactory factory = builder.build(in);\n\/\/\u4f7f\u7528\u5de5\u5382\u751f\u4ea7SqlSession\u5bf9\u8c61\nSqlSession session = factory.openSession();\n\/\/\u4f7f\u7528SqlSession\u521b\u5efaMapper\u63a5\u53e3\u7684\u4ee3\u7406\u5bf9\u8c61\nUserMapper userMapper = session.getMapper(UserMapper.class);\n\/\/\u4f7f\u7528\u4ee3\u7406\u5bf9\u8c61\u6267\u884c\u65b9\u6cd5\nList&lt;mybatis_user> users = userMapper.findAll();\nfor (mybatis_user muser : users){\n    System.out.println(muser);\n}\nsession.close();\nin.close();\n\n......\n<\/pre>\n\n\n\n<p><strong>\u4e09\u3001\u5bf9\u6bd4 JPA \u548c mybatis<\/strong><\/p>\n\n\n\n<p>\u5176\u5b9eJPA\u548cmybatis\u5927\u4f53\u4e0a\u6ca1\u4ec0\u4e48\u533a\u522b\uff0c\u67b6\u6784\u4e0a\u5f88\u76f8\u4f3c\uff0cmybatis\u5c31\u662fmapper\u5c42 :<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210-1024x480.png\" alt=\"\" class=\"wp-image-8525\" width=\"318\" height=\"148\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210-1024x480.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210-300x141.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210-768x360.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210-830x389.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210-230x108.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210-350x164.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210-480x225.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-210.png 1200w\" sizes=\"(max-width: 318px) 100vw, 318px\" \/><\/figure><\/div>\n\n\n\n<p>JPA\u5c31\u662frepository\u5c42<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/123.57.164.21\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211-1024x184.png\" alt=\"\" class=\"wp-image-8526\" width=\"473\" height=\"84\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211-1024x184.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211-300x54.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211-768x138.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211-830x150.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211-230x41.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211-350x63.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211-480x86.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2022\/11\/\u56fe\u7247-211.png 1532w\" sizes=\"(max-width: 473px) 100vw, 473px\" \/><\/figure><\/div>\n\n\n\n<p>\u5176\u4ed6\u90fd\u4e00\u6837\u7684<\/p>\n\n\n\n<ul><li>spring data jpa\u5b9e\u73b0\u4e86jpa\uff08java persistence api\uff09\u529f\u80fd\uff0c\u5373\u53ef\u4ee5\u5b9e\u73b0pojo\u8f6c\u6362\u4e3a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u8bb0\u5f55\u7684\u529f\u80fd\uff0c\u901a\u4fd7\u6765\u8bb2\u5c31\u662f\u53ef\u4ee5\u4e0d\u5199\u4efb \u4f55\u7684\u5efa\u8868sql\u8bed\u53e5\u4e86\u3002jpa\u662fspring data jpa\u529f\u80fd\u7684\u2f00\u4e2a\u2f26\u96c6\u3002 \u2f7dmybatis\u5e76\u6ca1\u6709jpa\u529f\u80fd\uff0c\u5efa\u8868\u8bed\u53e5\u8fd8\u662f\u8981\u2f83\u2f30\u5199\u7684\u3002<\/li><\/ul>\n\n\n\n<ul><li>spring data jpa\u662f\u5168\u2f83\u52a8\u6846\u67b6\uff0c\u4e0d\u9700\u8981\u5199\u4efb\u4f55sql\u3002\u2f7dmybatis\u662f\u534a\u2f83\u52a8\u6846\u67b6\uff0c\u9700\u8981\u2f83\u2f30\u5199sql\uff0cmybatis-plus\u4e3amybatis\u8d4b\u80fd\uff0c\u4f7f\u5176\u4e5f\u53ef\u4ee5\u57fa\u672c\u4e0a\u4e0d\u9700\u8981\u5199\u4efb\u4f55\u6a21\u677fsql\u3002<\/li><li>jpa\u5bf9\u4e8e\u5355\u8868\u7684\u7b80\u5355\u67e5\u8be2\u786e\u5b9e\u7b80\u5355\u65b9\u4fbf\u53c8\u5b9e\u7528\u3002<\/li><li>mybatis ,\u53ea\u80fd\u8bf4\u5bf9\u4e8e\u591a\u8868\u67e5\u8be2\u786e\u5b9e\u662f\u6bd4\u8f83\u652f\u6301\u3002\u5c24\u5176\u662f\u5728\u4e1a\u52a1\u903b\u8f91\u591a\u662f\u591a\u8868\u5173\u8054\u7684\u60c5\u51b5\u4e0b\uff0cmybatis\u7edd\u5bf9\u6bd4jpa\u8981\u66f4\u52a0\u9002\u5408\u3002\u65e0\u8bba\u662f\u4ee5\u540e\u7684\u7ef4\u62a4\u8fd8\u662f\u4e1a\u52a1\u7684\u53d8\u66f4\u90fd\u65b9\u4fbf\u4e0d\u5c11\u3002<\/li><\/ul>\n\n\n\n<p><strong>\u5fc3\u5f97\u603b\u7ed3<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u5176\u5b9e\u8981\u627f\u8ba4\uff0c\u4e00\u4e2a\u4e1c\u897f\u7528\u4e45\u4e86\u90fd\u4f1a\u6709\u4e60\u60ef\u5fc3\u7406\u3002mybatis\u548cjpa\uff0c\u4e24\u4e2a\u6301\u4e45\u5c42\u6846\u67b6\u3002\u4ece\u5e95\u5c42\u5230\u7528\u6cd5\u90fd\u4e0d\u540c\u3002\u4f46\u662f\u5b9e\u73b0\u7684\u529f\u80fd\u662f\u4e00\u6837\u7684\u3002\u6240\u4ee5\u8bf4\u4e00\u76f4\u4ee5\u6765\u9887\u6709\u4e89\u8bae\u3002\u5e38\u5e74\u6df7\u8ff9\u4e8e\u5404\u5927qq\u6280\u672f\u4ea4\u6d41\u7fa4\u3002\u89c1\u8fc7jpa\u7684\u6b7b\u5fe0\u7c89\u4e5f\u89c1\u8fc7mybatis\u7684\u94c1\u6746\u3002\u4f5c\u4e3a\u4e00\u4e2a\u4e0d\u5230\u4e24\u5e74\u5de5\u4f5c\u7ecf\u9a8c\u7684\u5c0f\u83dc\u9e1f\u6765\u8bf4\uff0c\u4f60\u8ba9\u6211\u5206\u6790\u6e90\u7801\uff0c\u8bb2\u4ec0\u4e48\u5e95\u5c42\u5b9e\u73b0\u6211\u662f\u8bb2\u4e0d\u51fa\u6765\u7684\u3002\u53ea\u80fd\u4f5c\u4e3a\u4e00\u4e2a\u4f7f\u7528\u8005\uff0c\u6765\u8c08\u8c08\u81ea\u5df1\u5bf9\u8fd9\u4e24\u4e2a\u6846\u67b6\u7684\u7406\u89e3\u3002<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u90fd\u77e5\u9053jpa\u7684\u524d\u8eab\u662f\u8457\u540d\u7684ssh\u4e2d\u7684h\u2014\u2014&gt;Hibernate\u3002\u6211\u5230\u73b0\u5728\u8fd8\u8bb0\u5f97\u5b66\u4e60Hibernate\u65f6\u5bf9\u5b83\u4ea7\u751f\u7684\u8bb2\u89e3\uff1a\u4e00\u4e2a\u5e0c\u671b\u4e0d\u7528\u5199sql\u8bed\u53e5\u6765\u64cd\u4f5c\u6570\u636e\u5e93\u7684\u61d2\u5230\u613f\u610f\u4e3a\u6b64\u5f00\u53d1\u4e00\u4e2a\u6846\u67b6\u7684\u521b\u59cb\u4eba\uff0c\u5176\u5b9e\u4e5f\u591f\u5947\u8469\u5230\u503c\u5f97\u8bb0\u4f4f\u4e86\u3002\u800c\u73b0\u5728\u7684jpa\uff0c\u6211\u89c9\u5f97\u4e3b\u65e8\u4e5f\u786e\u5b9e\u5728\u8d2f\u5f7b\u8fd9\u4e2a\u7406\u5ff5\u3002\u4f60\u8981\u627f\u8ba4\uff0cjpa\u7684\u5bf9\u4e8e\u5355\u8868\u7684\u7b80\u5355\u67e5\u8be2\u786e\u5b9e\u7b80\u5355\u65b9\u4fbf\u53c8\u5b9e\u7528\u3002\u4f46\u662f\u540c\u65f6\uff0c\u5bf9\u4e8e\u591a\u8868\u5173\u8054\u548c\u590d\u6742\u67e5\u8be2\uff0c\u8d77\u7801\u76ee\u524d\u4e3a\u6b62\uff0c\u8981\u4e48\u628a\u590d\u6742\u67e5\u8be2\u62c6\u6210\u591a\u4e2a\u7b80\u5355\u67e5\u8be2\uff0c\u8981\u4e48\u5b81\u53ef\u76f4\u63a5\u4e00\u4e2anativeQuery = 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