web层通用数据处理BaseController

/**
 * web层通用数据处理
 * 
 */
public class BaseController
{
    protected final Logger logger = LoggerFactory.getLogger(BaseController.class);

    /**
     * 将前台传递过来的日期格式的字符串，自动转化为Date类型
     */
    @InitBinder
    public void initBinder(WebDataBinder binder)
    {
        // Date 类型转换
        binder.registerCustomEditor(Date.class, new PropertyEditorSupport()
        {
            @Override
            public void setAsText(String text)
            {
                setValue(DateUtils.parseDate(text));
            }
        });
    }

    /**
     * 设置请求分页数据
     */
    protected void startPage()
    {
        PageDomain pageDomain = TableSupport.buildPageRequest();
        Integer pageNum = pageDomain.getPageNum();
        Integer pageSize = pageDomain.getPageSize();
        if (StringUtils.isNotNull(pageNum) && StringUtils.isNotNull(pageSize))
        {
            String orderBy = SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
            PageHelper.startPage(pageNum, pageSize, orderBy);
        }
    }

    /**
     * 响应请求分页数据
     */
    @SuppressWarnings({ "rawtypes", "unchecked" })
    protected TableDataInfo getDataTable(List<?> list)
    {
        TableDataInfo rspData = new TableDataInfo();
        rspData.setCode(HttpStatus.SUCCESS);
        rspData.setMsg("查询成功");
        rspData.setRows(list);
        rspData.setTotal(new PageInfo(list).getTotal());
        return rspData;
    }

    /**
     * 响应返回结果
     * 
     * @param rows 影响行数
     * @return 操作结果
     */
    protected AjaxResult toAjax(int rows)
    {
        return rows > 0 ? AjaxResult.success() : AjaxResult.error();
    }

    /**
     * 页面跳转
     */
    public String redirect(String url)
    {
        return StringUtils.format("redirect:{}", url);
    }
}

表格数据处理

/**
 * 表格数据处理
 * 
 */
public class TableSupport
{
    /**
     * 当前记录起始索引
     */
    public static final String PAGE_NUM = "pageNum";

    /**
     * 每页显示记录数
     */
    public static final String PAGE_SIZE = "pageSize";

    /**
     * 排序列
     */
    public static final String ORDER_BY_COLUMN = "orderByColumn";

    /**
     * 排序的方向 "desc" 或者 "asc".
     */
    public static final String IS_ASC = "isAsc";

    /**
     * 封装分页对象
     */
    public static PageDomain getPageDomain()
    {
        PageDomain pageDomain = new PageDomain();
        pageDomain.setPageNum(ServletUtils.getParameterToInt(PAGE_NUM));
        pageDomain.setPageSize(ServletUtils.getParameterToInt(PAGE_SIZE));
        pageDomain.setOrderByColumn(ServletUtils.getParameter(ORDER_BY_COLUMN));
        pageDomain.setIsAsc(ServletUtils.getParameter(IS_ASC));
        return pageDomain;
    }

    public static PageDomain buildPageRequest()
    {
        return getPageDomain();
    }
}

分页数据

/**
 * 分页数据
 * 
 */
public class PageDomain
{
    /** 当前记录起始索引 */
    private Integer pageNum;

    /** 每页显示记录数 */
    private Integer pageSize;

    /** 排序列 */
    private String orderByColumn;

    /** 排序的方向desc或者asc */
    private String isAsc = "asc";

    public String getOrderBy()
    {
        if (StringUtils.isEmpty(orderByColumn))
        {
            return "";
        }
        return StringUtils.toUnderScoreCase(orderByColumn) + " " + isAsc;
    }

    public Integer getPageNum()
    {
        return pageNum;
    }

    public void setPageNum(Integer pageNum)
    {
        this.pageNum = pageNum;
    }

    public Integer getPageSize()
    {
        return pageSize;
    }

    public void setPageSize(Integer pageSize)
    {
        this.pageSize = pageSize;
    }

    public String getOrderByColumn()
    {
        return orderByColumn;
    }

    public void setOrderByColumn(String orderByColumn)
    {
        this.orderByColumn = orderByColumn;
    }

    public String getIsAsc()
    {
        return isAsc;
    }

    public void setIsAsc(String isAsc)
    {
        this.isAsc = isAsc;
    }
}

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