{"id":667,"date":"2020-06-08T22:28:33","date_gmt":"2020-06-08T14:28:33","guid":{"rendered":"https:\/\/blog.humh.cn\/?p=667"},"modified":"2020-06-08T22:29:30","modified_gmt":"2020-06-08T14:29:30","slug":"mybatis-plus%e4%b9%8b%e9%80%9a%e7%94%a8%e6%9e%9a%e4%b8%be%e7%9a%84%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/blog.humh.cn\/?p=667","title":{"rendered":"MyBatis-Plus\u4e4b\u901a\u7528\u679a\u4e3e\u7684\u4f7f\u7528"},"content":{"rendered":"\n

\u8fc1\u79fb\u539f\u5148\u516c\u53f8\u5de5\u4f5c\u65f6\u603b\u7ed3\u7684\u5185\u5bb9<\/p><\/blockquote>\n\n\n\n

MyBatis-Plus \u63d0\u4f9b\u679a\u4e3e\u6620\u5c04\u5b57\u6bb5\u7684\u7b56\u7565\uff0c\u89e3\u51b3\u4e86\u7e41\u7410\u7684\u914d\u7f6e\uff0c\u8ba9 mybatis \u4f18\u96c5\u7684\u4f7f\u7528\u679a\u4e3e\u5c5e\u6027\uff01 <\/p>\n\n\n\n

\u5982\u6211\u4eec\u7684\u6570\u636e\u5e93\u4e2d\u7684\u8868\u4e2d\u6709\u8fd9\u6837\u4e00\u4e2a\u5b57\u6bb5\u201c`deleted` int(2) DEFAULT ‘0’ COMMENT ‘\u5220\u9664\u6807\u5fd7\uff080\uff1a\u6b63\u5e38\uff0c1\uff1a\u5220\u9664\uff09’\u201d\uff0c\u90a3\u4e48\u6211\u4eec\u5728\u5199\u5b9e\u4f53Entity\u65f6\uff0c\u4e00\u822c\u4f1a\u5bf9\u8be5\u5b57\u6bb5\u6709\u5982\u4e0b\u7b56\u7565\u3002 <\/p>\n\n\n\n

1\u3001\u5c06\u8be5\u5b57\u6bb5\u7684\u7c7b\u578b\u5b9a\u4e49Integer\uff0c\u7136\u540e\u7f16\u5199\u4ee3\u7801\u65f6\u6307\u5b9a\u5176int\u503c\u3002
2\u3001\u5c06\u8be5\u5b57\u6bb5\u7684\u7c7b\u578b\u4e3a\u679a\u4e3e\uff0c\u5982\u4e0b\uff0c\u7136\u540e\u7f16\u5199\u4ee3\u7801\u65f6\uff0cgetIntValue()\uff0c\u6307\u5b9a\u771f\u6b63\u7684value\u503c\u3002\uff08\u5982\u679c\u4e0d\u6307\u5b9avalue\u503c\uff0c\u76f4\u63a5\u63d2\u5165\u679a\u4e3e\u7684\u8bdd\uff0c\u9ed8\u8ba4\u63d2\u5165\u7684\u503c\u662f\u679a\u4e3e\u7684oridinal\uff0c\u679a\u4e3e\u503c\u58f0\u660e\u65f6\u7684\u987a\u5e8f\uff0c\u4ece0\u5f00\u59cb\uff0c\u4e00\u822c\u8fd9\u6837\u4e0d\u7b26\u5408\u6211\u4eec\u7684\u4e1a\u52a1\u5b9a\u4e49\uff09<\/p>\n\n\n\n

public enum DeleteEnum {\n\n \/** \u5df2\u5220\u9664 *\/\n YES(true, 1, \"\u5df2\u5220\u9664\"),\n\n \/** \u672a\u5220\u9664 *\/\n NO(false, 0, \"\u672a\u5220\u9664\");\n\n private boolean key;\n\n private int value;\n\n private String name;\n\n DeleteEnum(boolean key, int value, String name) {\n  this.key = key;\n  this.value = value;\n  this.name = name;\n }\n \/**\n  * \u83b7\u53d6\u6574\u578b\u503c\n  * \n  * @return\n  *\/\n public int getIntValue() {\n  return this.value;\n }\n\n}<\/pre>\n\n\n\n
\u4f46\u663e\u7136\u4e0a\u8ff0\u4e24\u79cd\u65b9\u5f0f\u4f1a\u6bd4\u8f83\u9ebb\u70e6\u3002Mybatis-Plus\u63d0\u4f9b\u6211\u4eec\u66f4\u65b9\u4fbf\u7684\u65b9\u5f0f\uff0c\u901a\u8fc7\u914d\u7f6e\u540e\uff0c\u53ef\u4ee5\u6307\u5b9a\u679a\u4e3e\u4e2d\u771f\u6b63\u4e0e\u6570\u636e\u5e93\u8868\u4e2d\u5b57\u6bb5\u503c\u5bf9\u5e94\u7684\u5b57\u6bb5\uff0c\u5982\u914d\u7f6e\u679a\u4e3e\u4e2d\u7684value\u5b57\u6bb5\u4e3a\u6570\u636e\u5e93\u8868\u4e2d\u5b57\u6bb5\u503c\u3002\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b\uff1a <\/p>\n\n\n\n
1\u3001\u5728\u679a\u4e3e\u5bf9\u5e94\u503c\u5b57\u6bb5\u4e0a\u6807\u6ce8\u6ce8\u89e3@EnumValue<\/strong>\uff0c\u7136\u540e\u914d\u7f6e\u6587\u4ef6\u4e2d\u5f00\u542f \u679a\u4e3e\u626b\u63cf<\/p>\n\n\n\n
 import com.baomidou.mybatisplus.annotation.EnumValue;\n\n\/**\n * @Description: \u6570\u636e\u5e93\u5b9e\u4f53\u5220\u9664\u6807\u8bb0\u679a\u4e3e\n * @Author: huminghao\n * @Date: 2019-12-20\n **\/\npublic enum DeleteEnum {\n\n \/** \u5df2\u5220\u9664 *\/\n YES(true, 1, \"\u5df2\u5220\u9664\"),\n\n \/** \u672a\u5220\u9664 *\/\n NO(false, 0, \"\u672a\u5220\u9664\");\n\n private boolean key;\n @EnumValue\n private int value;\n private String name;\n\n DeleteEnum(boolean key, int value, String name) {\n  this.key = key;\n  this.value = value;\n  this.name = name;\n }\n\n \/**\n  * \u83b7\u53d6\u6574\u578b\u503c\n  * \n  * @return\n  *\/\n public int getIntValue() {\n  return this.value;\n }\n\n}<\/pre>\n\n\n\n
 mybatis-plus.typeEnumsPackage=cn.susoncloud.enums<\/code> <\/p>\n\n\n\n
2\u3001 \u679a\u4e3e\u7c7b\u5b9e\u73b0IEnum<\/strong>\u63a5\u53e3\uff0c\u7136\u540e\u914d\u7f6e\u6587\u4ef6\u5f00\u542f\u679a\u4e3e\u626b\u63cf <\/p>\n\n\n\n
\u5b9e\u73b0IEnum\u63a5\u53e3\uff0c\u5e76\u91cd\u5199getValue()<\/strong> <\/p>\n\n\n\n
import com.baomidou.mybatisplus.core.enums.IEnum;\n\n\/**\n * @Description: \u6570\u636e\u5e93\u5b9e\u4f53\u5220\u9664\u6807\u8bb0\u679a\u4e3e\n * @Author: huminghao\n * @Date: 2019-12-20\n **\/\npublic enum DeleteEnum implements IEnum<Integer>{\n\n \/** \u5df2\u5220\u9664 *\/\n YES(true, 1, \"\u5df2\u5220\u9664\"),\n\n \/** \u672a\u5220\u9664 *\/\n NO(false, 0, \"\u672a\u5220\u9664\");\n\n private boolean key;\n\n private int value;\n private String name;\n\n DeleteEnum(boolean key, int value, String name) {\n  this.key = key;\n  this.value = value;\n  this.name = name;\n }\n\n \/**\n  * \u83b7\u53d6\u6574\u578b\u503c\n  * \n  * @return\n  *\/\n public int getIntValue() {\n  return this.value;\n }\n\n    @Override\n    public Integer getValue() {\n        return value;\n    }\n}<\/pre>\n\n\n\n
 mybatis-plus.typeEnumsPackage=cn.susoncloud.enums<\/code> <\/p>\n\n\n\n
\u6ce8\u610f\uff0c\u4f7f\u7528\u4e86MyBatis-Plus \u81ea\u5b9a\u4e49\u679a\u4e3e\u540e\uff0c\u4ee3\u7801\u4e2d\u5728\u4fdd\u5b58\u5b9e\u4f53\u65f6\u5b57\u6bb5\u503cset \u679a\u4e3e\u5373\u53ef\uff0cget\u6761\u4ef6\u67e5\u8be2\u65f6\uff0c\u53ef\u4ee5\u679a\u4e3e\u4e5f\u53ef\u4ee5value\u503c\u5373\u53ef\u3002\u5982\u4e0b\uff1a <\/p>\n\n\n\n
\u5b9e\u4f53\u4e2d\u679a\u4e3e\u5b57\u6bb5\u5982 <\/p>\n\n\n\n
   \/**\n     * \u5220\u9664\u6807\u5fd7\uff080\uff1a\u6b63\u5e38\uff0c1\uff1a\u5220\u9664\uff09\n     *\/\n    private DeleteEnum deleted;<\/pre>\n\n\n\n
save\u3001insert\u3001update <\/p>\n\n\n\n
new course().setDeleted(DeleteEnum.YES);<\/pre>\n\n\n\n
select <\/p>\n\n\n\n
 Map<Property<Course, ?>, Object> queryParam = new LinkedHashMap();\n        queryParam.put(Course::getId, courseId);\n        queryParam.put(Course::getDeleted, DeleteEnum.NO.getIntValue());\n        Course course = getOne(new QueryWrapper<Course>().lambda().allEq(queryParam));<\/pre>\n\n\n\n
Map<Property<Course, ?>, Object> queryParam = new LinkedHashMap();\n        queryParam.put(Course::getId, courseId);\n        queryParam.put(Course::getDeleted, DeleteEnum.NO);\n        Course course = getOne(new QueryWrapper<Course>().lambda().allEq(queryParam));<\/pre>\n\n\n\n
Mybatis-Plus\u5728\u67e5\u8be2\u65f6\uff0c\u4f1a\u5728\u6307\u5b9a\u67e5\u8be2\u6761\u4ef6\u53c2\u6570\u65f6\uff0c\u4ece\u679a\u4e3e\u4e2d\u53d6\u5f97\u6ce8\u89e3\u63a7\u5236\u7684\u5b57\u6bb5\u503c\uff0c\u6216\u8005getValue()\u7684\u503c\u3002<\/p>\n\n\n\n
MyBatis-Plus\u7684\u679a\u4e3e\u7684\u4f7f\u7528\uff0c\u5e76\u6ca1\u6709\u6539\u53d8\u6570\u636e\u5e93\u8868\u5b57\u6bb5\u7684\u7c7b\u578b\uff0c\u6570\u636e\u5e93\u8868\u5b57\u6bb5\u4ecd\u7136\u4f7f\u7528\u539f\u5148\u7684int\u6216\u8005\u5176\u4ed6\uff0c\u53ea\u662f\u5728\u4ee3\u7801\u7f16\u5199\u5c42\u9762\u505a\u4e86\u4f18\u5316\uff0c\u540c\u65f6\u4fdd\u8bc1\u907f\u514d\u4e1a\u52a1\u4ee3\u7801\u4e2d\u8bef\u64cd\u4f5c\u9519\u8bef\u6570\u636e\u503c\u5982\u63d2\u5165\u5176\u4ed6int\u503c\uff08\u679a\u4e3e\u7684\u9650\u5236\uff09<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
\u8fc1\u79fb\u539f\u5148\u516c\u53f8\u5de5\u4f5c\u65f6\u603b\u7ed3\u7684\u5185\u5bb9 MyBatis-Plus \u63d0\u4f9b\u679a\u4e3e\u6620\u5c04\u5b57\u6bb5\u7684\u7b56\u7565\uff0c\u89e3\u51b3\u4e86\u7e41\u7410\u7684\u914d\u7f6e\uff0c\u8ba9 myba […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[51],"tags":[35,88],"_links":{"self":[{"href":"https:\/\/blog.humh.cn\/index.php?rest_route=\/wp\/v2\/posts\/667"}],"collection":[{"href":"https:\/\/blog.humh.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.humh.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.humh.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.humh.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=667"}],"version-history":[{"count":3,"href":"https:\/\/blog.humh.cn\/index.php?rest_route=\/wp\/v2\/posts\/667\/revisions"}],"predecessor-version":[{"id":670,"href":"https:\/\/blog.humh.cn\/index.php?rest_route=\/wp\/v2\/posts\/667\/revisions\/670"}],"wp:attachment":[{"href":"https:\/\/blog.humh.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.humh.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=667"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.humh.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}