mybatisplus+实验

agri-admin/src/main/resources/application.yml

@@ -106,8 +106,8 @@ token:
   # 令牌有效期（默认30分钟）
   expireTime: 30
 
-# MyBatis配置
+# MyBatis Plus配置
-mybatis:
+mybatis-plus:
   # 搜索指定包别名
   typeAliasesPackage: com.agri.**.domain
   # 配置mapper的扫描，找到所有的mapper.xml映射文件

agri-common/pom.xml

@@ -126,7 +126,12 @@
             <groupId>javax.servlet</groupId>
             <artifactId>javax.servlet-api</artifactId>
         </dependency>
+        <!-- ruoyi-springboot2 / mybatis-plus 配置 -->
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>mybatis-plus-boot-starter</artifactId>
 
+        </dependency>
     </dependencies>
 
 </project>

agri-framework/src/main/java/com/agri/framework/config/MyBatisConfig.java

@@ -1,132 +0,0 @@
-package com.agri.framework.config;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashSet;
-import java.util.List;
-import javax.sql.DataSource;
-import org.apache.ibatis.io.VFS;
-import org.apache.ibatis.session.SqlSessionFactory;
-import org.mybatis.spring.SqlSessionFactoryBean;
-import org.mybatis.spring.boot.autoconfigure.SpringBootVFS;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.core.env.Environment;
-import org.springframework.core.io.DefaultResourceLoader;
-import org.springframework.core.io.Resource;
-import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
-import org.springframework.core.io.support.ResourcePatternResolver;
-import org.springframework.core.type.classreading.CachingMetadataReaderFactory;
-import org.springframework.core.type.classreading.MetadataReader;
-import org.springframework.core.type.classreading.MetadataReaderFactory;
-import org.springframework.util.ClassUtils;
-import com.agri.common.utils.StringUtils;
-
-/**
- * Mybatis支持*匹配扫描包
- * 
- * @author ruoyi
- */
-@Configuration
-public class MyBatisConfig
-{
-    @Autowired
-    private Environment env;
-
-    static final String DEFAULT_RESOURCE_PATTERN = "**/*.class";
-
-    public static String setTypeAliasesPackage(String typeAliasesPackage)
-    {
-        ResourcePatternResolver resolver = (ResourcePatternResolver) new PathMatchingResourcePatternResolver();
-        MetadataReaderFactory metadataReaderFactory = new CachingMetadataReaderFactory(resolver);
-        List<String> allResult = new ArrayList<String>();
-        try
-        {
-            for (String aliasesPackage : typeAliasesPackage.split(","))
-            {
-                List<String> result = new ArrayList<String>();
-                aliasesPackage = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX
-                        + ClassUtils.convertClassNameToResourcePath(aliasesPackage.trim()) + "/" + DEFAULT_RESOURCE_PATTERN;
-                Resource[] resources = resolver.getResources(aliasesPackage);
-                if (resources != null && resources.length > 0)
-                {
-                    MetadataReader metadataReader = null;
-                    for (Resource resource : resources)
-                    {
-                        if (resource.isReadable())
-                        {
-                            metadataReader = metadataReaderFactory.getMetadataReader(resource);
-                            try
-                            {
-                                result.add(Class.forName(metadataReader.getClassMetadata().getClassName()).getPackage().getName());
-                            }
-                            catch (ClassNotFoundException e)
-                            {
-                                e.printStackTrace();
-                            }
-                        }
-                    }
-                }
-                if (result.size() > 0)
-                {
-                    HashSet<String> hashResult = new HashSet<String>(result);
-                    allResult.addAll(hashResult);
-                }
-            }
-            if (allResult.size() > 0)
-            {
-                typeAliasesPackage = String.join(",", (String[]) allResult.toArray(new String[0]));
-            }
-            else
-            {
-                throw new RuntimeException("mybatis typeAliasesPackage 路径扫描错误,参数typeAliasesPackage:" + typeAliasesPackage + "未找到任何包");
-            }
-        }
-        catch (IOException e)
-        {
-            e.printStackTrace();
-        }
-        return typeAliasesPackage;
-    }
-
-    public Resource[] resolveMapperLocations(String[] mapperLocations)
-    {
-        ResourcePatternResolver resourceResolver = new PathMatchingResourcePatternResolver();
-        List<Resource> resources = new ArrayList<Resource>();
-        if (mapperLocations != null)
-        {
-            for (String mapperLocation : mapperLocations)
-            {
-                try
-                {
-                    Resource[] mappers = resourceResolver.getResources(mapperLocation);
-                    resources.addAll(Arrays.asList(mappers));
-                }
-                catch (IOException e)
-                {
-                    // ignore
-                }
-            }
-        }
-        return resources.toArray(new Resource[resources.size()]);
-    }
-
-    @Bean
-    public SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception
-    {
-        String typeAliasesPackage = env.getProperty("mybatis.typeAliasesPackage");
-        String mapperLocations = env.getProperty("mybatis.mapperLocations");
-        String configLocation = env.getProperty("mybatis.configLocation");
-        typeAliasesPackage = setTypeAliasesPackage(typeAliasesPackage);
-        VFS.addImplClass(SpringBootVFS.class);
-
-        final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
-        sessionFactory.setDataSource(dataSource);
-        sessionFactory.setTypeAliasesPackage(typeAliasesPackage);
-        sessionFactory.setMapperLocations(resolveMapperLocations(StringUtils.split(mapperLocations, ",")));
-        sessionFactory.setConfigLocation(new DefaultResourceLoader().getResource(configLocation));
-        return sessionFactory.getObject();
-    }
-}

agri-framework/src/main/java/com/agri/framework/config/MybatisPlusConfig.java

@@ -0,0 +1,62 @@
+package com.agri.framework.config;
+
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.BlockAttackInnerInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+
+/**
+ * Mybatis Plus 配置
+ *
+ * @author ruoyi
+ */
+@EnableTransactionManagement(proxyTargetClass = true)
+@Configuration
+public class MybatisPlusConfig
+{
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor()
+    {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        // 分页插件
+        interceptor.addInnerInterceptor(paginationInnerInterceptor());
+        // 乐观锁插件
+        interceptor.addInnerInterceptor(optimisticLockerInnerInterceptor());
+        // 阻断插件
+        interceptor.addInnerInterceptor(blockAttackInnerInterceptor());
+        return interceptor;
+    }
+
+    /**
+     * 分页插件，自动识别数据库类型 https://baomidou.com/guide/interceptor-pagination.html
+     */
+    public PaginationInnerInterceptor paginationInnerInterceptor()
+    {
+        PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor();
+        // 设置数据库类型为mysql
+        paginationInnerInterceptor.setDbType(DbType.MYSQL);
+        // 设置最大单页限制数量，默认 500 条，-1 不受限制
+        paginationInnerInterceptor.setMaxLimit(-1L);
+        return paginationInnerInterceptor;
+    }
+
+    /**
+     * 乐观锁插件 https://baomidou.com/guide/interceptor-optimistic-locker.html
+     */
+    public OptimisticLockerInnerInterceptor optimisticLockerInnerInterceptor()
+    {
+        return new OptimisticLockerInnerInterceptor();
+    }
+
+    /**
+     * 如果是对全表的删除或更新操作，就会终止该操作 https://baomidou.com/guide/interceptor-block-attack.html
+     */
+    public BlockAttackInnerInterceptor blockAttackInnerInterceptor()
+    {
+        return new BlockAttackInnerInterceptor();
+    }
+}

agri-system/src/main/java/com/agri/system/controller/SysStudentController.java

@@ -0,0 +1,104 @@
+package com.agri.system.controller;
+
+import com.agri.common.annotation.Log;
+import com.agri.common.core.controller.BaseController;
+import com.agri.common.core.domain.AjaxResult;
+import com.agri.common.core.page.TableDataInfo;
+import com.agri.common.enums.BusinessType;
+import com.agri.common.utils.poi.ExcelUtil;
+import com.agri.system.domain.SysStudent;
+import com.agri.system.service.ISysStudentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * 学生信息Controller
+ *
+ * @author ruoyi
+ */
+@RestController
+@RequestMapping("/system/student")
+public class SysStudentController extends BaseController
+{
+    @Autowired
+    private ISysStudentService sysStudentService;
+
+    /**
+     * 查询学生信息列表
+     */
+    @PreAuthorize("@ss.hasPermi('system:student:list')")
+    @GetMapping("/list")
+    public TableDataInfo list(SysStudent sysStudent)
+    {
+        startPage();
+        List<SysStudent> list = sysStudentService.queryList(sysStudent);
+        return getDataTable(list);
+    }
+
+    /**
+     * 导出学生信息列表
+     */
+    @PreAuthorize("@ss.hasPermi('system:student:export')")
+    @Log(title = "学生信息", businessType = BusinessType.EXPORT)
+    @GetMapping("/export")
+    public AjaxResult export(SysStudent sysStudent)
+    {
+        List<SysStudent> list = sysStudentService.queryList(sysStudent);
+        ExcelUtil<SysStudent> util = new ExcelUtil<SysStudent>(SysStudent.class);
+        return util.exportExcel(list, "student");
+    }
+
+    /**
+     * 获取学生信息详细信息
+     */
+    @PreAuthorize("@ss.hasPermi('system:student:query')")
+    @GetMapping(value = "/{studentId}")
+    public AjaxResult getInfo(@PathVariable("studentId") Long studentId)
+    {
+        return AjaxResult.success(sysStudentService.getById(studentId));
+    }
+
+    /**
+     * 新增学生信息
+     */
+    @PreAuthorize("@ss.hasPermi('system:student:add')")
+    @Log(title = "学生信息", businessType = BusinessType.INSERT)
+    @PostMapping
+    public AjaxResult add(@RequestBody SysStudent sysStudent)
+    {
+        return toAjax(sysStudentService.save(sysStudent));
+    }
+
+    /**
+     * 修改学生信息
+     */
+    @PreAuthorize("@ss.hasPermi('system:student:edit')")
+    @Log(title = "学生信息", businessType = BusinessType.UPDATE)
+    @PutMapping
+    public AjaxResult edit(@RequestBody SysStudent sysStudent)
+    {
+        return toAjax(sysStudentService.updateById(sysStudent));
+    }
+
+    /**
+     * 删除学生信息
+     */
+    @PreAuthorize("@ss.hasPermi('system:student:remove')")
+    @Log(title = "学生信息", businessType = BusinessType.DELETE)
+    @DeleteMapping("/{studentIds}")
+    public AjaxResult remove(@PathVariable Long[] studentIds)
+    {
+        return toAjax(sysStudentService.removeByIds(Arrays.asList(studentIds)));
+    }
+}

agri-system/src/main/java/com/agri/system/domain/SysStudent.java

@@ -0,0 +1,131 @@
+package com.agri.system.domain;
+
+import com.agri.common.annotation.Excel;
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import com.fasterxml.jackson.annotation.JsonFormat;
+import org.apache.commons.lang3.builder.ToStringBuilder;
+import org.apache.commons.lang3.builder.ToStringStyle;
+
+import java.io.Serializable;
+import java.util.Date;
+
+/**
+ * 学生信息对象 sys_student
+ *
+ * @author ruoyi
+ */
+@TableName(value = "sys_student")
+public class SysStudent implements Serializable
+{
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+
+    /** 编号 */
+    @TableId(type = IdType.AUTO)
+    private Long studentId;
+
+    /** 学生名称 */
+    @Excel(name = "学生名称")
+    private String studentName;
+
+    /** 年龄 */
+    @Excel(name = "年龄")
+    private Integer studentAge;
+
+    /** 爱好（0代码 1音乐 2电影） */
+    @Excel(name = "爱好", readConverterExp = "0=代码,1=音乐,2=电影")
+    private String studentHobby;
+
+    /** 性别（0男 1女 2未知） */
+    @Excel(name = "性别", readConverterExp = "0=男,1=女,2=未知")
+    private String studentSex;
+
+    /** 状态（0正常 1停用） */
+    @Excel(name = "状态", readConverterExp = "0=正常,1=停用")
+    private String studentStatus;
+
+    /** 生日 */
+    @JsonFormat(pattern = "yyyy-MM-dd")
+    @Excel(name = "生日", width = 30, dateFormat = "yyyy-MM-dd")
+    private Date studentBirthday;
+
+    public void setStudentId(Long studentId)
+    {
+        this.studentId = studentId;
+    }
+
+    public Long getStudentId()
+    {
+        return studentId;
+    }
+    public void setStudentName(String studentName)
+    {
+        this.studentName = studentName;
+    }
+
+    public String getStudentName()
+    {
+        return studentName;
+    }
+    public void setStudentAge(Integer studentAge)
+    {
+        this.studentAge = studentAge;
+    }
+
+    public Integer getStudentAge()
+    {
+        return studentAge;
+    }
+    public void setStudentHobby(String studentHobby)
+    {
+        this.studentHobby = studentHobby;
+    }
+
+    public String getStudentHobby()
+    {
+        return studentHobby;
+    }
+    public void setStudentSex(String studentSex)
+    {
+        this.studentSex = studentSex;
+    }
+
+    public String getStudentSex()
+    {
+        return studentSex;
+    }
+    public void setStudentStatus(String studentStatus)
+    {
+        this.studentStatus = studentStatus;
+    }
+
+    public String getStudentStatus()
+    {
+        return studentStatus;
+    }
+    public void setStudentBirthday(Date studentBirthday)
+    {
+        this.studentBirthday = studentBirthday;
+    }
+
+    public Date getStudentBirthday()
+    {
+        return studentBirthday;
+    }
+
+    @Override
+    public String toString() {
+        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
+                .append("studentId", getStudentId())
+                .append("studentName", getStudentName())
+                .append("studentAge", getStudentAge())
+                .append("studentHobby", getStudentHobby())
+                .append("studentSex", getStudentSex())
+                .append("studentStatus", getStudentStatus())
+                .append("studentBirthday", getStudentBirthday())
+                .toString();
+    }
+}

agri-system/src/main/java/com/agri/system/mapper/SysStudentMapper.java

@@ -0,0 +1,14 @@
+package com.agri.system.mapper;
+
+import com.agri.system.domain.SysStudent;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+
+/**
+ * 学生信息Mapper接口
+ *
+ * @author ruoyi
+ */
+public interface SysStudentMapper extends BaseMapper<SysStudent>
+{
+
+}

agri-system/src/main/java/com/agri/system/service/ISysStudentService.java

@@ -0,0 +1,22 @@
+package com.agri.system.service;
+
+import com.agri.system.domain.SysStudent;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+import java.util.List;
+
+/**
+ * 学生信息Service接口
+ *
+ * @author ruoyi
+ */
+public interface ISysStudentService extends IService<SysStudent>
+{
+    /**
+     * 查询学生信息列表
+     *
+     * @param sysStudent 学生信息
+     * @return 学生信息集合
+     */
+    public List<SysStudent> queryList(SysStudent sysStudent);
+}

agri-system/src/main/java/com/agri/system/service/impl/SysStudentServiceImpl.java

@@ -0,0 +1,43 @@
+package com.agri.system.service.impl;
+
+import com.agri.common.utils.StringUtils;
+import com.agri.system.domain.SysStudent;
+import com.agri.system.mapper.SysStudentMapper;
+import com.agri.system.service.ISysStudentService;
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+ * 学生信息Service业务层处理
+ *
+ * @author ruoyi
+ */
+@Service
+public class SysStudentServiceImpl extends ServiceImpl<SysStudentMapper, SysStudent> implements ISysStudentService
+{
+    @Override
+    public List<SysStudent> queryList(SysStudent sysStudent)
+    {
+        // 注意：mybatis-plus lambda 模式不支持 eclipse 的编译器
+        // LambdaQueryWrapper<SysStudent> queryWrapper = Wrappers.lambdaQuery();
+        // queryWrapper.eq(SysStudent::getStudentName, sysStudent.getStudentName());
+        QueryWrapper<SysStudent> queryWrapper = Wrappers.query();
+        if (StringUtils.isNotEmpty(sysStudent.getStudentName()))
+        {
+            queryWrapper.eq("student_name", sysStudent.getStudentName());
+        }
+        if (StringUtils.isNotNull(sysStudent.getStudentAge()))
+        {
+            queryWrapper.eq("student_age", sysStudent.getStudentAge());
+        }
+        if (StringUtils.isNotEmpty(sysStudent.getStudentHobby()))
+        {
+            queryWrapper.eq("student_hobby", sysStudent.getStudentHobby());
+        }
+        return this.list(queryWrapper);
+    }
+}

pom.xml

@@ -36,6 +36,7 @@
         <spring-security.version>5.7.14</spring-security.version>
         <spring-framework.version>5.3.39</spring-framework.version>
         <knife4j.version>3.0.3</knife4j.version>
+        <mybatis-plus.version>3.5.1</mybatis-plus.version>
     </properties>
 
     <!-- 依赖声明 -->
@@ -225,6 +226,12 @@
                 <artifactId>agri-api</artifactId>
                 <version>${agri.version}</version>
             </dependency>
+            <!-- ruoyi-springboot2 / mybatis-plus 配置 -->
+            <dependency>
+                <groupId>com.baomidou</groupId>
+                <artifactId>mybatis-plus-boot-starter</artifactId>
+                <version>${mybatis-plus.version}</version>
+            </dependency>
         </dependencies>
     </dependencyManagement>