• mybatis分页插件


    maven:

     <dependency>
                <groupId>com.github.jsqlparser</groupId>
                <artifactId>jsqlparser</artifactId>
                <version>1.1</version>
            </dependency>
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>5.1.2</version>
            </dependency>

    mybatis配置文件:

    <plugins>  
        <!-- com.github.pagehelper为PageHelper类所在包名 -->  
        <plugin interceptor="com.github.pagehelper.PageHelper">  
            <!-- 方言 -->  
            <property name="dialect" value="mysql"/>  
            <!-- 该参数默认为false -->  
            <!-- 设置为true时,使用RowBounds分页会进行count查询 -->  
            <property name="rowBoundsWithCount" value="true"/>  
        </plugin>  
    </plugins>  

    spring与mybatis整合

    spring配置文件:

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <!-- <property name="configLocation" value="classpath:mybatis-config.xml" /> -->
            <property name="dataSource" ref="dataSource" />
            <property name="mapperLocations" value="classpath:com/yupont/gs/dao/mapper/*.xml" ></property>
            <property name="typeAliasesPackage" value="com.yupont.gs.model"/>
            <property name="plugins">
                <array>
                      <!-- 分页插件 -->
                      <bean class="com.github.pagehelper.PageInterceptor">
                          <property name="properties">
                              <value>
                                <!-- 设置为true时,使用RowBounds分页会进行count查询 -->
                                rowBoundsWithCount=true
                              </value>
                        </property>
                      </bean>
                      <!-- 性能拦截器,用于输出每条 SQL 语句及其执行时间,会影响一定性能,正式环境要关闭 -->
                      <bean class="com.yupont.core.mvc.mybatis.PerformanceInterceptor">
                      </bean>
                </array>
              </property>
        </bean>

    使用方法:

    @Test
        public void selectAll(){
            PageHelper.startPage(2, 5); //第一个参数offset是当前页数,第二个参数limit是每页显示多少数据,分页会在紧跟的selete查询后执行,通过PageInfo类,还可以获得更多信息
            //Condition c = new Condition(Test1.class);
            //c.createCriteria().andCondition("name in ('zhaoliu','zhangsan')");
            List<Test1> list = mapper.selectAll();
            PageInfo<Test1> page = new PageInfo<Test1>(list);
            System.out.println(page.getTotal());
            for (Test1 test1 : list) {
                System.out.println(test1.getName());
            }
        }

      

      
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  • 原文地址:https://www.cnblogs.com/wangsen123/p/8879678.html
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