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若依 MyBatis改为MyBatis-Plus的实现步骤

作者：禾日香

本文主要介绍了若依 MyBatis改为MyBatis-Plus的实现步骤,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧

主要内容：升级成mybatis-plus，代码生成也是mybatis-plus版本

跟着我一步一步来，就可完成升级！

检查：启动程序，先保证若依能启动

第一步：添加依赖

这里需要在两个地方添加，一个是最外面的父工程的pom.xml，一个是ruoyi-common的pom.xml。

最外面的父工程的pom.xml：

1.添加版本信息

代码：
<!--   mybatis-plus 版本-->
<mybatis-pluc.version>3.4.2</mybatis-pluc.version>

2.添加mybatis-plus依赖

代码：

<!-- mybatis-plus 增强CRUD -->
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.4.2</version>
</dependency>

ruoyi-common的pom.xml：

1.直接继承父工程的依赖

第一步验证：

admin的包中的application.yml文件有mybatis-plus的提示，说明依赖弄好啦！

第二步：修改application.yml文件

1.删除旧的mybatis配置

2.写入新配置

代码：

# MyBatis Plus配置
mybatis-plus:
  # 搜索指定包别名   根据自己的项目来
  typeAliasesPackage: com.rchuing.sis.**.domain 
  # 配置mapper的扫描，找到所有的mapper.xml映射文件
  mapperLocations: classpath*:mapper/**/*Mapper.xml
  # 加载全局的配置文件
  configLocation: classpath:mybatis/mybatis-config.xml
  global-config:
    enable-sql-runner: true
    db-config:
      id-type: auto

第三步：重写mybatis配置文件

1.在framework中，找到MybatisConfig文件，然后删除。

2.在刚删除的文件夹下，新建一个MybatisPlus的java文件

复制已下内容到java文件中：

/**
 * 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();
    }
}

如图：

到这里Mybatis-plus就升级完成了。但代码生成里面还是以前mybatis的，这里也需要升级一下，方便代码生成。

第四步:把代码生成修改为mybatis-plus版本

1.在generator找到vm中的java文件夹

2.修改里面内容：这里直接上代码了，找到对应的直接复制粘贴就行。

2.1:domain.java.vm

package ${packageName}.domain;

#foreach ($import in $importList)
import ${import};
#end
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import com.rchuing.sis.common.annotation.Excel;
#if($table.crud || $table.sub)
import com.rchuing.sis.common.core.domain.BaseEntity;
#elseif($table.tree)
import com.fenghuang.common.core.domain.TreeEntity;
#end

/**
 * ${functionName}对象 ${tableName}
 *
 * @author ${author}
 * @date ${datetime}
 */
#if($table.crud || $table.sub)
    #set($Entity="BaseEntity")
#elseif($table.tree)
    #set($Entity="TreeEntity")
#end
@TableName(resultMap = "${packageName}.mapper.${ClassName}Mapper.${ClassName}Result")
public class ${ClassName} extends ${Entity}
        {
private static final long serialVersionUID = 1L;

#foreach ($column in $columns)
    #if(!$table.isSuperColumn($column.javaField))
    /** $column.columnComment */
        #if($column.list)
            #set($parentheseIndex=$column.columnComment.indexOf("（"))
            #if($parentheseIndex != -1)
                #set($comment=$column.columnComment.substring(0, $parentheseIndex))
            #else
                #set($comment=$column.columnComment)
            #end
            #if($parentheseIndex != -1)
            @Excel(name = "${comment}", readConverterExp = "$column.readConverterExp()")
            #elseif($column.javaType == 'Date')
            @JsonFormat(pattern = "yyyy-MM-dd")
            @Excel(name = "${comment}", width = 30, dateFormat = "yyyy-MM-dd")
            #else
            @Excel(name = "${comment}")
            #end
        #end
        #if($column.isPk == 1)
        @TableId(value = "$column.columnName",type = IdType.AUTO)
        #end
    private $column.javaType $column.javaField;

    #end
#end
#if($table.sub)
/** $table.subTable.functionName信息 */
private List<${subClassName}> ${subclassName}List;

#end
#foreach ($column in $columns)
    #if(!$table.isSuperColumn($column.javaField))
        #if($column.javaField.length() > 2 && $column.javaField.substring(1,2).matches("[A-Z]"))
            #set($AttrName=$column.javaField)
        #else
            #set($AttrName=$column.javaField.substring(0,1).toUpperCase() + ${column.javaField.substring(1)})
        #end
    public void set${AttrName}($column.javaType $column.javaField)
            {
            this.$column.javaField = $column.javaField;
            }

    public $column.javaType get${AttrName}()
            {
            return $column.javaField;
            }
    #end
#end

#if($table.sub)
public List<${subClassName}> get${subClassName}List()
        {
        return ${subclassName}List;
        }

public void set${subClassName}List(List<${subClassName}> ${subclassName}List)
        {
        this.${subclassName}List = ${subclassName}List;
        }

#end
@Override
public String toString() {
        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
    #foreach ($column in $columns)
        #if($column.javaField.length() > 2 && $column.javaField.substring(1,2).matches("[A-Z]"))
            #set($AttrName=$column.javaField)
        #else
            #set($AttrName=$column.javaField.substring(0,1).toUpperCase() + ${column.javaField.substring(1)})
        #end
            .append("${column.javaField}", get${AttrName}())
    #end
    #if($table.sub)
            .append("${subclassName}List", get${subClassName}List())
    #end
        .toString();
        }
        }

2.2:mapper.java.vm

package ${packageName}.mapper;

import java.util.List;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import ${packageName}.domain.${ClassName};
#if($table.sub)
import ${packageName}.domain.${subClassName};
#end

/**
 * ${functionName}Mapper接口
 *
 * @author ${author}
 * @date ${datetime}
 */
public interface ${ClassName}Mapper extends BaseMapper<${ClassName}> {
    /**
     * 查询${functionName}
     *
     * @param ${pkColumn.javaField} ${functionName}主键
     * @return ${functionName}
     */
    public ${ClassName} select${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaType} ${pkColumn.javaField});

    /**
     * 查询${functionName}列表
     *
     * @param ${className} ${functionName}
     * @return ${functionName}集合
     */
    public List<${ClassName}> select${ClassName}List(${ClassName} ${className});

    /**
     * 新增${functionName}
     *
     * @param ${className} ${functionName}
     * @return 结果
     */
    public int insert${ClassName}(${ClassName} ${className});

    /**
     * 修改${functionName}
     *
     * @param ${className} ${functionName}
     * @return 结果
     */
    public int update${ClassName}(${ClassName} ${className});

    /**
     * 删除${functionName}
     *
     * @param ${pkColumn.javaField} ${functionName}主键
     * @return 结果
     */
    public int delete${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaType} ${pkColumn.javaField});

    /**
     * 批量删除${functionName}
     *
     * @param ${pkColumn.javaField}s 需要删除的数据主键集合
     * @return 结果
     */
    public int delete${ClassName}By${pkColumn.capJavaField}s(${pkColumn.javaType}[] ${pkColumn.javaField}s);
#if($table.sub)

    /**
     * 批量删除${subTable.functionName}
     *
     * @param ${pkColumn.javaField}s 需要删除的数据主键集合
     * @return 结果
     */
    public int delete${subClassName}By${subTableFkClassName}s(${pkColumn.javaType}[] ${pkColumn.javaField}s);

    /**
     * 批量新增${subTable.functionName}
     *
     * @param ${subclassName}List ${subTable.functionName}列表
     * @return 结果
     */
    public int batch${subClassName}(List<${subClassName}> ${subclassName}List);


    /**
     * 通过${functionName}主键删除${subTable.functionName}信息
     *
     * @param ${pkColumn.javaField} ${functionName}ID
     * @return 结果
     */
    public int delete${subClassName}By${subTableFkClassName}(${pkColumn.javaType} ${pkColumn.javaField});
#end
}

2.3:service.java.vm

package ${packageName}.service;

import java.util.List;
import ${packageName}.domain.${ClassName};
import com.baomidou.mybatisplus.extension.service.IService;

/**
 * ${functionName}Service接口
 *
 * @author ${author}
 * @date ${datetime}
 */
public interface I${ClassName}Service extends IService<${ClassName}> {
    /**
     * 查询${functionName}
     *
     * @param ${pkColumn.javaField} ${functionName}主键
     * @return ${functionName}
     */
    public ${ClassName} select${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaType} ${pkColumn.javaField});

    /**
     * 查询${functionName}列表
     *
     * @param ${className} ${functionName}
     * @return ${functionName}集合
     */
    public List<${ClassName}> select${ClassName}List(${ClassName} ${className});

    /**
     * 新增${functionName}
     *
     * @param ${className} ${functionName}
     * @return 结果
     */
    public int insert${ClassName}(${ClassName} ${className});

    /**
     * 修改${functionName}
     *
     * @param ${className} ${functionName}
     * @return 结果
     */
    public int update${ClassName}(${ClassName} ${className});

    /**
     * 批量删除${functionName}
     *
     * @param ${pkColumn.javaField}s 需要删除的${functionName}主键集合
     * @return 结果
     */
    public int delete${ClassName}By${pkColumn.capJavaField}s(${pkColumn.javaType}[] ${pkColumn.javaField}s);

    /**
     * 删除${functionName}信息
     *
     * @param ${pkColumn.javaField} ${functionName}主键
     * @return 结果
     */
    public int delete${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaType} ${pkColumn.javaField});
}

2.4:serviceimpl.java.vm

package ${packageName}.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import java.util.List;
#foreach ($column in $columns)
#if($column.javaField == 'createTime' || $column.javaField == 'updateTime')
import com.rchuing.common.utils.DateUtils;
#break
#end
#end
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
#if($table.sub)
import java.util.ArrayList;
import com.rchuing.common.utils.StringUtils;
import org.springframework.transaction.annotation.Transactional;
import ${packageName}.domain.${subClassName};
#end
import ${packageName}.mapper.${ClassName}Mapper;
import ${packageName}.domain.${ClassName};
import ${packageName}.service.I${ClassName}Service;

/**
 * ${functionName}Service业务层处理
 *
 * @author ${author}
 * @date ${datetime}
 */
@Service
public class ${ClassName}ServiceImpl extends ServiceImpl<${ClassName}Mapper, ${ClassName}> implements I${ClassName}Service {
    @Autowired
    private ${ClassName}Mapper ${className}Mapper;

    /**
     * 查询${functionName}
     *
     * @param ${pkColumn.javaField} ${functionName}主键
     * @return ${functionName}
     */
    @Override
    public ${ClassName} select${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaType} ${pkColumn.javaField}) {
        return ${className}Mapper.select${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaField});
    }

    /**
     * 查询${functionName}列表
     *
     * @param ${className} ${functionName}
     * @return ${functionName}
     */
    @Override
    public List<${ClassName}> select${ClassName}List(${ClassName} ${className}) {
        return ${className}Mapper.select${ClassName}List(${className});
    }

    /**
     * 新增${functionName}
     *
     * @param ${className} ${functionName}
     * @return 结果
     */
#if($table.sub)
    @Transactional
#end
    @Override
    public int insert${ClassName}(${ClassName} ${className}) {
#foreach ($column in $columns)
#if($column.javaField == 'createTime')
        ${className}.setCreateTime(DateUtils.getNowDate());
#end
#end
#if($table.sub)
        int rows = ${className}Mapper.insert${ClassName}(${className});
        insert${subClassName}(${className});
        return rows;
#else
        return ${className}Mapper.insert${ClassName}(${className});
#end
    }

    /**
     * 修改${functionName}
     *
     * @param ${className} ${functionName}
     * @return 结果
     */
#if($table.sub)
    @Transactional
#end
    @Override
    public int update${ClassName}(${ClassName} ${className}) {
#foreach ($column in $columns)
#if($column.javaField == 'updateTime')
        ${className}.setUpdateTime(DateUtils.getNowDate());
#end
#end
#if($table.sub)
        ${className}Mapper.delete${subClassName}By${subTableFkClassName}(${className}.get${pkColumn.capJavaField}());
        insert${subClassName}(${className});
#end
        return ${className}Mapper.update${ClassName}(${className});
    }

    /**
     * 批量删除${functionName}
     *
     * @param ${pkColumn.javaField}s 需要删除的${functionName}主键
     * @return 结果
     */
#if($table.sub)
    @Transactional
#end
    @Override
    public int delete${ClassName}By${pkColumn.capJavaField}s(${pkColumn.javaType}[] ${pkColumn.javaField}s) {
#if($table.sub)
        ${className}Mapper.delete${subClassName}By${subTableFkClassName}s(${pkColumn.javaField}s);
#end
        return ${className}Mapper.delete${ClassName}By${pkColumn.capJavaField}s(${pkColumn.javaField}s);
    }

    /**
     * 删除${functionName}信息
     *
     * @param ${pkColumn.javaField} ${functionName}主键
     * @return 结果
     */
#if($table.sub)
    @Transactional
#end
    @Override
    public int delete${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaType} ${pkColumn.javaField}) {
#if($table.sub)
        ${className}Mapper.delete${subClassName}By${subTableFkClassName}(${pkColumn.javaField});
#end
        return ${className}Mapper.delete${ClassName}By${pkColumn.capJavaField}(${pkColumn.javaField});
    }
#if($table.sub)

    /**
     * 新增${subTable.functionName}信息
     *
     * @param ${className} ${functionName}对象
     */
    public void insert${subClassName}(${ClassName} ${className}) {
        List<${subClassName}> ${subclassName}List = ${className}.get${subClassName}List();
        ${pkColumn.javaType} ${pkColumn.javaField} = ${className}.get${pkColumn.capJavaField}();
        if (StringUtils.isNotNull(${subclassName}List))
        {
            List<${subClassName}> list = new ArrayList<${subClassName}>();
            for (${subClassName} ${subclassName} : ${subclassName}List)
            {
                ${subclassName}.set${subTableFkClassName}(${pkColumn.javaField});
                list.add(${subclassName});
            }
            if (list.size() > 0)
            {
                ${className}Mapper.batch${subClassName}(list);
            }
        }
    }
#end
}

2.5:sub-domain.java.vm

package ${packageName}.domain;

#foreach ($import in $subImportList)
import ${import};
#end
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import com.rchuing.common.annotation.Excel;
import com.rchuing.common.core.domain.BaseEntity;

/**
 * ${subTable.functionName}对象 ${subTableName}
 *
 * @author ${author}
 * @date ${datetime}
 */
public class ${subClassName} extends BaseEntity {
    private static final long serialVersionUID = 1L;

#foreach ($column in $subTable.columns)
#if(!$table.isSuperColumn($column.javaField))
    /** $column.columnComment */
#if($column.list)
#set($parentheseIndex=$column.columnComment.indexOf("（"))
#if($parentheseIndex != -1)
#set($comment=$column.columnComment.substring(0, $parentheseIndex))
#else
#set($comment=$column.columnComment)
#end
#if($parentheseIndex != -1)
    @Excel(name = "${comment}", readConverterExp = "$column.readConverterExp()")
#elseif($column.javaType == 'Date')
    @JsonFormat(pattern = "yyyy-MM-dd")
    @Excel(name = "${comment}", width = 30, dateFormat = "yyyy-MM-dd")
#else
    @Excel(name = "${comment}")
#end
#end
    private $column.javaType $column.javaField;

#end
#end
#foreach ($column in $subTable.columns)
#if(!$table.isSuperColumn($column.javaField))
#if($column.javaField.length() > 2 && $column.javaField.substring(1,2).matches("[A-Z]"))
#set($AttrName=$column.javaField)
#else
#set($AttrName=$column.javaField.substring(0,1).toUpperCase() + ${column.javaField.substring(1)})
#end
    public void set${AttrName}($column.javaType $column.javaField) {
        this.$column.javaField = $column.javaField;
    }

    public $column.javaType get${AttrName}() {
        return $column.javaField;
    }
#end
#end

    @Override
    public String toString() {
        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
#foreach ($column in $subTable.columns)
#if($column.javaField.length() > 2 && $column.javaField.substring(1,2).matches("[A-Z]"))
#set($AttrName=$column.javaField)
#else
#set($AttrName=$column.javaField.substring(0,1).toUpperCase() + ${column.javaField.substring(1)})
#end
            .append("${column.javaField}", get${AttrName}())
#end
            .toString();
    }
}

到这里就升级完成。

下面进行测试：

1.

2.

3.如果看到mybatis的东西，说明升级成功！

注意： 

1.这里可能有些包的路径不对，把爆红的包删除，重新导入就可！

2.因为实际项目路径不同，这里可能需要手动修改！

3.在BaseEntity类中

到此这篇关于若依 MyBatis改为MyBatis-Plus的实现步骤的文章就介绍到这了,更多相关若依 MyBatis改为MyBatis-Plus内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！ 

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