完成试卷生成的方法--By Ternece

source/xzs/src/main/java/com/mindskip/xzs/controller/student/ExaminationPaperProductionController.java

@@ -0,0 +1,26 @@
+package com.mindskip.xzs.controller.student;
+
+import com.mindskip.xzs.base.BaseApiController;
+import com.mindskip.xzs.base.RestResponse;
+import com.mindskip.xzs.domain.Question;
+import com.mindskip.xzs.service.ExaminationPaperProductionService;
+import com.mindskip.xzs.viewmodel.student.exam.ExaminationProductionVM;
+import lombok.AllArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.List;
+
+@RestController("ExaminationPaperProductionController")
+@RequestMapping(value = "/api/student/examination/paper")
+@AllArgsConstructor
+public class ExaminationPaperProductionController extends BaseApiController {
+
+    private final ExaminationPaperProductionService examinationPaperProductionService;
+
+    @RequestMapping(value = "/production", method = RequestMethod.GET)
+    public RestResponse paperProduction(@RequestBody @Valid ExaminationProductionVM examinationProductionVM){
+        List<Question> questionList = examinationPaperProductionService.generation(examinationProductionVM);
+        return RestResponse.ok(questionList);
+    }
+}

source/xzs/src/main/java/com/mindskip/xzs/repository/QuestionMapper.java

@@ -1,8 +1,9 @@
 package com.mindskip.xzs.repository;
 
-import com.mindskip.xzs.domain.other.KeyValue;
 import com.mindskip.xzs.domain.Question;
+import com.mindskip.xzs.domain.other.KeyValue;
 import com.mindskip.xzs.viewmodel.admin.question.QuestionPageRequestVM;
+import com.mindskip.xzs.viewmodel.student.exam.ExaminationProductionVM;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 
@@ -29,5 +30,7 @@ public interface QuestionMapper extends BaseMapper<Question> {
 
     Integer selectAllCount();
 
-    List<KeyValue> selectCountByDate(@Param("startTime") Date startTime,@Param("endTime") Date endTime);
+    List<KeyValue> selectCountByDate(@Param("startTime") Date startTime, @Param("endTime") Date endTime);
+
+    List<Question> selectQuestionsByQuestionsNumber(ExaminationProductionVM examinationProductionVM);
 }

source/xzs/src/main/java/com/mindskip/xzs/service/ExaminationPaperProductionService.java

@@ -0,0 +1,12 @@
+package com.mindskip.xzs.service;
+
+import com.mindskip.xzs.domain.Question;
+import com.mindskip.xzs.viewmodel.student.exam.ExaminationProductionVM;
+
+import java.util.List;
+
+public interface ExaminationPaperProductionService extends BaseService<Question>{
+
+
+    List<Question> generation(ExaminationProductionVM examinationProductionVM);
+}

source/xzs/src/main/java/com/mindskip/xzs/service/impl/ExaminationPaperProductionServiceImpl.java

@@ -0,0 +1,33 @@
+package com.mindskip.xzs.service.impl;
+
+import com.github.pagehelper.PageHelper;
+import com.mindskip.xzs.domain.Question;
+import com.mindskip.xzs.repository.BaseMapper;
+import com.mindskip.xzs.repository.QuestionMapper;
+import com.mindskip.xzs.service.ExaminationPaperProductionService;
+import com.mindskip.xzs.viewmodel.student.exam.ExaminationProductionVM;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+
+public class ExaminationPaperProductionServiceImpl extends BaseServiceImpl<Question> implements ExaminationPaperProductionService {
+
+    private final QuestionMapper questionMapper;
+
+    @Autowired
+    public ExaminationPaperProductionServiceImpl(BaseMapper<Question> baseMapper, QuestionMapper questionMapper) {
+        super(baseMapper);
+        this.questionMapper = questionMapper;
+    }
+
+
+    @Override
+    public List<Question> generation(ExaminationProductionVM examinationProductionVM) {
+
+        return PageHelper.startPage(examinationProductionVM.getPageIndex(),examinationProductionVM.getPageSize()).doSelectPage(()->
+                questionMapper.selectQuestionsByQuestionsNumber(examinationProductionVM));
+    }
+}

source/xzs/src/main/java/com/mindskip/xzs/viewmodel/student/exam/ExaminationProductionVM.java

@@ -0,0 +1,18 @@
+package com.mindskip.xzs.viewmodel.student.exam;
+
+import com.mindskip.xzs.base.BasePage;
+import lombok.Data;
+
+import javax.validation.constraints.NotNull;
+import java.util.List;
+
+@Data
+public class ExaminationProductionVM extends BasePage {
+    @NotNull
+    private int questionNumber;
+
+    private Integer difficult;
+    private List<Integer> skillIds;
+    private Integer industryId;
+
+}

source/xzs/src/main/resources/mapper/QuestionMapper.xml

@@ -209,7 +209,7 @@
     <include refid="Page_Column_List"/>
     FROM t_question AS q LEFT JOIN t_industry AS i ON q.industry_id = i.id LEFT JOIN t_skill AS s ON s.id = q.skill_id
     <where>
-        and q.deleted=0
+       q.deleted=0
       <if test="id != null ">
         and q.id= #{id}
       </if>
@@ -231,6 +231,33 @@
     </where>
   </select>
 
+  <select id="selectQuestionsByQuestionsNumber"
+          parameterType="com.mindskip.xzs.viewmodel.student.exam.ExaminationProductionVM"
+  resultMap="BaseResultMap"
+  >
+    select
+    <include refid="Base_Column_List"/>
+    from t_question
+    <where>
+      q.deleted=0
+      <if test="difficult != null">
+        and difficult = #{difficult}
+      </if>
+      <if test="industryId != null">
+        and industry_id= #{industryId}
+      </if>
+      <if test="skillIds != null">
+        and skill_id in
+        <foreach collection="skillIds" item="skillId" open="(" separator=","
+                 close=")">
+          #{skillId}
+        </foreach>
+      </if>
+    </where>
+    group by skill_id
+    limit #{questionNumber}
+
+  </select>
 
 
   <select id="selectByIds" resultMap="BaseResultMap" >