PageHelper无效问题解决

短命女 2022-11-28 10:47 223阅读 0赞

1、如果你使用的是 springBoot 那么应该引入下面的依赖 （版本号自己确定）

<groupId>com.github.pagehelper</groupId>
     <artifactId>pagehelper-spring-boot-starter</artifactId>

2、SpringMvc里面引入下面的依赖（版本号自己确定）

<groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper</artifactId>

3、如果你非要在SpringBoot中引入下面这种，那么你需要配置一个拦截器

<groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper</artifactId>

**PageInterceptor**

import org.apache.ibatis.cache.CacheKey;
    import org.apache.ibatis.executor.Executor;
    import org.apache.ibatis.mapping.BoundSql;
    import org.apache.ibatis.mapping.MappedStatement;
    import org.apache.ibatis.plugin.Intercepts;
    import org.apache.ibatis.plugin.Signature;
    import org.apache.ibatis.session.ResultHandler;
    import org.apache.ibatis.session.RowBounds;
    
    import java.util.Properties;
    
    @Intercepts(
        { 
            @Signature(type = Executor.class, method = "query", args = { MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}),
            @Signature(type = Executor.class, method = "query", args = { MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class, CacheKey.class, BoundSql.class}),
        }
    )
    public class PageInterceptor extends com.github.pagehelper.PageInterceptor{ 
    
    	public PageInterceptor(){ 
    		super();
    		Properties properties = new Properties();
    		properties.setProperty("dialect", "com.github.pagehelper.PageHelper");
    		setProperties(properties);
    	}
    }

我们是在多数据源配置的时候加上的，你可以根据实际情况来。

public DataSource primaryDataSource() { 
            DataSource ds =  DataSourceBuilder.create().build();
    	ADOSessionImpl session = new ADOSessionImpl();
    	//开启/关闭-自动转换驼峰标识
    	SessionFactory.setMapUnderscoreToCamelCase(true);
            session.addInterceptor("_default", "com.koron.util.PageInterceptor");
    	session.registeDataSourceMap("_default", ds);
            return ds;
        }