mybatis中crud操作范例
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 3 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 4 5 <!--提供基本版,依据业务情况,酌情添加--> 6 <!--author XiJun.Gong--> 7 8 <mapper namespace="com.qunar.qexam2.course.dao.CourseDao"> 9 10 <insert id="insertCourse" parameterType="com.qunar.qexam2.course.model.CourseDomain" 11 useGeneratedKeys="true" keyProperty="id"> 12 INSERT INTO 13 course 14 ( 15 classification_id, 16 course_name, 17 create_time, 18 create_user, 19 update_time, 20 update_user, 21 is_delete 22 ) 23 VALUES 24 ( 25 #{classificationId}, 26 #{name}, 27 #{createTime}, 28 #{creatorTalkId}, 29 #{modifyTime}, 30 #{menderTalkId}, 31 #{isDelete} 32 ) 33 </insert> 34 <!--批量插入数据--> 35 <insert id="insertCourseBatch" parameterType="com.qunar.qexam2.course.model.CourseDomain"> 36 INSERT INTO 37 course 38 ( 39 classification_id , 40 course_name , 41 create_time , 42 create_user, 43 update_time, 44 update_user, 45 is_delete 46 ) 47 VALUES 48 <foreach collection="list" item="item" index="index" separator=","> 49 ( 50 #{item.classificationId}, 51 #{item.name} , 52 #{item.createTime} , 53 #{item.creatorTalkId}, 54 #{item.modifyTime}, 55 #{item.menderTalkId}, 56 #{item.isDelete} 57 ) 58 </foreach> 59 60 </insert> 61 62 <!--物理删除--> 63 <delete id="deleteCourse"> 64 65 DELETE course1 , question1 66 FROM course course1 67 JOIN question question1 68 ON course1.id = question1.course_id 69 AND question1.use_count = 0 70 71 WHERE 72 course1.id = #{CourseId}; 73 74 </delete> 75 76 77 <update id="updateCourse" parameterType="com.qunar.qexam2.course.model.CourseDomain"> 78 79 UPDATE course 80 <set> 81 82 <if test="classificationId != null and classificationId !='' "> 83 course.classification_id = #{classificationId} , 84 </if> 85 86 <if test=" name != null and name != '' "> 87 course.course_name = #{name} , 88 </if> 89 90 <if test="createTime != null and createTime !='' "> 91 course.create_time = #{createTime} , 92 </if> 93 94 <if test="creatorTalkId != null and creatorTalkId!='' "> 95 course.create_user = #{creatorTalkId} , 96 </if> 97 98 <if test="modifyTime != null and modifyTime != '' "> 99 course.update_time = #{modifyTime} , 100 </if> 101 102 <if test="menderTalkId != null and menderTalkId !='' "> 103 course.update_user = #{menderTalkId} , 104 </if> 105 106 <if test="isDelete != null and isDelete != '' "> 107 course.is_delete = #{isDelete} 108 </if> 109 110 </set> 111 WHERE course.id =#{id} 112 113 </update> 114 115 <!--逻辑删除--> 116 <update id="updateCourseStatus"> 117 UPDATE course AS course1 118 JOIN question AS question1 119 ON course1.id = question1.course_id 120 AND question1.use_count = 0 121 SET 122 course1.is_delete = 1, 123 question1.is_delete = 1 124 WHERE 125 course1.id = #{CourseId} 126 127 </update> 128 129 <!--分类逻辑删除--> 130 <!--逻辑删除--> 131 <update id="updateBatchCourseStatus"> 132 133 UPDATE course As course1 134 JOIN question As question1 135 ON 136 course1.id = question1.course_id 137 AND question1.use_count = 0 138 SET course1.is_delete = 1, 139 question1.is_delete = 1 140 WHERE 141 course.classification_id = #{classificationId} 142 </update> 143 144 <!--逻辑添加--> 145 <update id="updateCourseOnline"> 146 UPDATE course 147 SET course.is_delete = 0 148 WHERE 149 course.id = #{CourseId} 150 </update> 151 152 <select id="selectCourses" resultType="com.qunar.qexam2.course.model.CourseDomain"> 153 154 SELECT 155 course.id as id , 156 course.classification_id as classificationId , 157 course.course_name as name , 158 course.create_time as createTime , 159 course.create_user as creatorTalkId , 160 course.update_time as modifyTime , 161 course.update_user as menderTalkId , 162 course.is_delete as isDelete 163 164 FROM course 165 166 <where> 167 168 <if test="classificationId != null and classificationId != '' "> 169 AND 170 course.classification_id = #{classificationId} 171 </if> 172 <if test="isDelete != null and isDelete != '' "> 173 AND 174 course.is_delete = #{isDelete} 175 </if> 176 177 </where> 178 order by course.create_time desc 179 </select> 180 181 <select id="selectCourseVoAll" resultType="com.qunar.qexam2.course.vo.CourseVo"> 182 SELECT 183 course.id AS id, 184 course.course_name AS name 185 FROM course 186 WHERE 187 course.is_delete = 0 188 ORDER BY course.create_time DESC 189 </select> 190 191 192 <select id="CountCourses" resultType="com.qunar.qexam2.course.model.CourseDomain"> 193 SELECT COUNT(*) 194 FROM course 195 <where> 196 <if test="classificationId != null and classificationId != '' "> 197 AND 198 course.classification_id = #{classificationId} 199 </if> 200 AND 201 course.is_delete = 0 202 </where> 203 </select> 204 205 <!--统计未进行逻辑删除的课程--> 206 <select id="CountCoursesByCourseId" resultType="java.lang.Integer"> 207 SELECT count(*) 208 FROM course 209 WHERE course.is_delete = 0 210 </select> 211 212 <!--统计多个分类下的课程数目--> 213 <select id="CountCoursesByCategoryId" resultType="Integer"> 214 SELECT COUNT(*) 215 FROM course 216 WHERE 217 course.is_delete = 0 218 AND course.classification_id IN 219 <foreach item="classificationId" index="index" collection="classificationIdList" 220 open="(" separator="," close=")"> 221 #{classificationId} 222 </foreach> 223 </select> 224 225 226 <select id="selectCourseByName" resultType="com.qunar.qexam2.course.model.CourseDomain"> 227 228 SELECT 229 course.id as id , 230 course.classification_id as classificationId , 231 course.course_name as name , 232 course.create_time as createTime , 233 course.create_user as creatorTalkId , 234 course.update_time as modifyTime , 235 course.update_user as menderTalkId , 236 course.is_delete as isDelete 237 238 FROM course 239 <where> 240 <if test="CourseName != null and CourseName != '' "> 241 AND 242 course.course_name like #{CourseName} 243 </if> 244 <if test="isDelete != null and isDelete != '' "> 245 AND 246 course.is_delete = #{isDelete} 247 </if> 248 </where> 249 250 order by course.create_time desc 251 </select> 252 253 <select id="selectCourse" resultType="com.qunar.qexam2.course.model.CourseDomain"> 254 255 SELECT 256 course.id as id , 257 course.classification_id as classificationId , 258 course.course_name as name , 259 course.create_time as createTime , 260 course.create_user as creatorTalkId , 261 course.update_time as modifyTime , 262 course.update_user as menderTalkId , 263 course.is_delete as isDelete 264 265 FROM course 266 <where> 267 <if test="CourseId != null and CourseId != '' "> 268 AND 269 course.id = #{CourseId} 270 </if> 271 <if test="isDelete != null and isDelete !='' "> 272 AND 273 course.is_delete = #{isDelete} 274 </if> 275 </where> 276 order by course.create_time desc 277 </select> 278 279 280 <select id="selectCourseWithoutLimit" 281 resultType="com.qunar.qexam2.course.model.CourseDomain"> 282 283 SELECT 284 course.id AS id, 285 course.classification_id AS classificationId, 286 course.course_name AS name, 287 course.create_time AS createTime, 288 course.create_user AS creatorTalkId, 289 course.update_time AS modifyTime, 290 course.update_user AS menderTalkId, 291 course.is_delete AS isDelete 292 FROM course 293 294 WHERE course.is_delete = 0 295 ORDER BY course.create_time DESC 296 </select> 297 298 <select id="selectCourseByAuthor" resultType="com.qunar.qexam2.course.model.CourseDomain"> 299 300 SELECT 301 course.id as id , 302 course.classification_id as classificationId , 303 course.course_name as name , 304 course.create_time as createTime , 305 course.create_user as creatorTalkId , 306 course.update_time as modifyTime , 307 course.update_user as menderTalkId , 308 course.is_delete as isDelete 309 310 FROM course 311 <where> 312 <if test="creatorTalkId != null and creatorTalkId != '' "> 313 AND 314 course.create_user = #{creatorTalkId} 315 </if> 316 317 <if test="isDelete != null and isDelete != '' "> 318 AND 319 course.is_delete = #{isDelete} 320 </if> 321 </where> 322 order by course.create_time desc 323 </select> 324 325 <select id="selectClassificationName" resultType="java.lang.String"> 326 SELECT classification.tag_name 327 FROM course 328 LEFT JOIN classification 329 ON course.classification_id = classification.id 330 <where> 331 <if test="courseId != null and courseId !='' "> 332 AND 333 course.id = courseId 334 </if> 335 </where> 336 </select> 337 338 <select id="queryCourseVoByCategoryId" resultType="com.qunar.qexam2.course.vo.CourseVo"> 339 SELECT 340 course.id AS id , 341 course.course_name AS name, 342 FROM course 343 <where> 344 <if test="classificationId != null and classificationId != '' "> 345 AND 346 course.classification_id = #{classificationId} 347 </if> 348 </where> 349 </select> 350 351 352 <!--依照分类来返回课程列表信息--> 353 <select id="queryCourseInfVoByCategoryId" resultType="com.qunar.qexam2.course.vo.CourseInfoVo"> 354 355 SELECT 356 course.id AS id , 357 course.course_name AS courseName, 358 course.create_user AS createUser, 359 course.create_time As createTime 360 FROM course 361 362 <where> 363 <if test="classificationId != null and classificationId != '' "> 364 AND 365 course.classification_id = #{classificationId} 366 </if> 367 </where> 368 369 </select> 370 371 <!--依照分类来返回课程列表信息--> 372 <select id="queryCourseInfVoByCategoryIdList" resultType="com.qunar.qexam2.course.vo.CourseInfoVo"> 373 SELECT 374 course.id AS id , 375 course.course_name AS courseName, 376 course.create_user AS createUser, 377 course.create_time As createTime 378 FROM course 379 WHERE course.classification_id IN 380 <foreach item="classificationId" index="index" collection="classificationIdList" 381 open="(" separator="," close=")"> 382 #{classificationId} 383 </foreach> 384 </select> 385 386 <!-- 387 <!–给予课程Id查询课程所属的一二级部门部门–> 388 <select id="queryCourseAffiliation" resultType="com.qunar.qexam2.course.vo.CourseAffiliation"> 389 390 SELECT 391 course1.course_name AS courseName , 392 category1.tag_name As firstDepart , 393 category2.tag_name AS secondDepart 394 395 FROM 396 course course1 397 398 JOIN classification category2 ON 399 category2.id = course1.classification_id 400 401 JOIN classification category1 ON 402 category1.id = category2.parent_id 403 404 WHERE course1.id = #{courseId} 405 406 </select> 407 --> 408 409 <!--依照分类来返回课程列表信息--> 410 <select id="queryCategoryIdByCourseId" resultType="java.lang.Integer"> 411 SELECT 412 course.classification_id AS classificationId 413 FROM course 414 WHERE course.id IN 415 <foreach item="courseId" index="index" collection="courseIdList" 416 open="(" separator="," close=")"> 417 #{courseId} 418 </foreach> 419 </select> 420 421 422 <!--依照分类Id来返回课程Id列表信息--> 423 <select id="queryCourseIdByCategoryId" resultType="java.lang.Integer"> 424 SELECT 425 course.id 426 FROM course 427 WHERE course.classification_id IN 428 <foreach item="classificationId" index="index" collection="categoryIdList" 429 open="(" separator="," close=")"> 430 #{classificationId} 431 </foreach> 432 </select> 433 434 435 </mapper>
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