github上有一个专门针对mybatis的物理分页开源项目：mybatis-paginator，兼容目前绝大多数主流数据库，十分好用，下面是使用步骤：
环境：struts2 + spring + mybatis
一、pom.xml中添加依赖项
1 <dependency> 2 <groupId>com.github.miemiedev</groupId> 3 <artifactId>mybatis-paginator</artifactId> 4 <version>1.2.15</version> 5 </dependency>
二、mybatis映射文件中按常规写sql语句
1 <select id="getFsuList" resultType="N_CA_FSU"> 2 Select t.RECID recId, 3 t.GROSSWEIGHT grossWeight, 4 t.TOTALGROSSWEIGHT totalGrossWeight, 5 t.GROSSWEIGHTUNITCODE grossWeightUnitCode, 6 ... 7 8 From N_CA_FSU t 9 Where ... 10 </select>
三、服务层基类
1 package acc.service.support;
2
3 import java.io.Serializable;
4 import java.util.List;
5
6 import org.apache.ibatis.session.SqlSession;
7 import org.apache.ibatis.session.SqlSessionFactory;
8 import org.mybatis.spring.SqlSessionFactoryBean;
9 import org.mybatis.spring.SqlSessionUtils;
10 import org.slf4j.Logger;
11 import org.slf4j.LoggerFactory;
12 import org.springframework.beans.factory.annotation.Autowired;
13
14 import com.github.miemiedev.mybatis.paginator.domain.PageBounds;
15
16 public class BaseServiceImpl implements Serializable {
17
18 private static final long serialVersionUID = 1293567786956029903L;
19
20 protected Logger logger = LoggerFactory.getLogger(this.getClass());
21
22 @Autowired
23 protected SqlSessionFactoryBean sqlSessionFactory;
24
25 /**
26 * 查询分页数据
27 *
28 * @param mapperClass
29 * @param sqlId
30 * @param sqlParameter
31 * @param pageIndex
32 * @param pageSize
33 * @return
34 * @throws Exception
35 */
36 protected List<?> getPageList(Class<?> mapperClass, String sqlId,
37 Object sqlParameter, int pageIndex, int pageSize) throws Exception {
38 SqlSession session = null;
39 try {
40 SqlSessionFactory sessionFactory = sqlSessionFactory.getObject();
41 session = SqlSessionUtils.getSqlSession(sessionFactory);
42 if (pageIndex <= 0) {
43 pageIndex = 1;
44 }
45 if (pageSize <= 0) {
46 pageSize = 10;
47 }
48 PageBounds pageBounds = new PageBounds(pageIndex, pageSize);
49 return session.selectList(mapperClass.getName() + "." + sqlId,
50 sqlParameter, pageBounds);
51 } finally {
52 session.close();
53 }
54
55 }
56
57 }
四、具体的服务层子类调用
1 package acc.service.support;
2
3 ...
4
5 @Service
6 public class FsuServiceImpl extends BaseServiceImpl implements FsuService {
7
8 private static final long serialVersionUID = 6560424159072027262L;
9
10 @Autowired
11 FsuMapper fsuMapper;
12
13 ...
14
15
16 @SuppressWarnings("unchecked")
17 @Override
18 public PageList<N_CA_FSU> getAll(int pageIndex, int pageSize)
19 throws Exception {
20 return (PageList<N_CA_FSU>) getPageList(FsuMapper.class, "getFsuList",
21 null, pageIndex, pageSize);
22 }
23
24 ...
25
26
27 }
服务层就处理完了，接下来看Action层
五、Action基类
1 package acc.action;
2
3 import org.apache.struts2.ServletActionContext;
4 import org.apache.struts2.convention.annotation.ParentPackage;
5 import org.slf4j.Logger;
6 import org.slf4j.LoggerFactory;
7
8 import acc.lms.invoker.utils.StringUtils;
9
10 import com.opensymphony.xwork2.ActionSupport;
11
12 @ParentPackage("default")
13 public class BaseController extends ActionSupport {
14
15 protected Logger logger = LoggerFactory.getLogger(this.getClass());
16
17 private static final long serialVersionUID = -8955001188163866079L;
18
19 private int pageSize = 15;
20
21 private int pageIndex = 1;
22
23 private int totalCounts = 0;
24 private int totalPages = 0;
25
26 public int getPageSize() {
27 return pageSize;
28 }
29
30 public void setPageSize(int pageSize) {
31 this.pageSize = pageSize;
32 }
33
34 public int getPageIndex() {
35 String t = ServletActionContext.getRequest().getParameter("pageIndex");
36 if (!StringUtils.isEmpty(t)) {
37 pageIndex = Integer.parseInt(t);
38 }
39 return pageIndex;
40 }
41
42 public int getTotalCounts() {
43 return totalCounts;
44 }
45
46 public void setTotalCounts(int totalCounts) {
47 this.totalCounts = totalCounts;
48 }
49
50 public int getTotalPages() {
51 return totalPages;
52 }
53
54 public void setTotalPages(int totalPages) {
55 this.totalPages = totalPages;
56 }
57
58 }
注：约定分页时，url类似 /xxx.action?pageIndex=N
六、具体的Action子类调用
1 package acc.action;
2
3 ...
4
5 @Results({ @Result(name = "success", type = "redirectAction", params = {
6 "actionName", "fsu" }) })
7 public class FsuController extends BaseController implements
8 ModelDriven<Object> {
9
10 ...
11 @Autowired
12 FsuService fsuService;
13
14 ...
15
16
17
18 // GET /fsu
19 public HttpHeaders index() throws Exception {
20 list = fsuService.getAll(getPageIndex(), getPageSize());
21
22 setPageSize(list.getPaginator().getLimit());
23 setTotalCounts(list.getPaginator().getTotalCount());
24 setTotalPages(list.getPaginator().getTotalPages());
25
26 return new DefaultHttpHeaders("index").disableCaching();
27 }
28
29 ...
30
31 }
七、前端页面
1 <link href="${pageContext.request.contextPath}/resources/css/simplePagination/simplePagination.css" rel="stylesheet" type="text/css"/>
2 <script type="text/javascript" src="${pageContext.request.contextPath}/resources/js/common/jquery-1.7.1.min.js"></script>
3 <script type="text/javascript" src="${pageContext.request.contextPath}/resources/js/common/simplePagination/jquery.simplePagination.js"></script>
4 <script type="text/javascript">
5 var pageIndex = ${pageIndex};
6 var pageSize = ${pageSize};
7 var totalPages = ${totalPages};
8 var totalCounts = ${totalCounts};
9
10 $(document).ready(function() {
11
12 $("#page-box").pagination({
13 items: totalCounts,
14 itemsOnPage: pageSize,
15 currentPage:pageIndex,
16 cssStyle: ‘light-theme‘,
17 prevText:‘<‘,
18 nextText:‘>‘,
19 onPageClick:function(page){
20 gotoPage(page);
21 }
22 });
23 showPageInfo();
24
25 });
26
27 function gotoPage(page) {
28 window.location = "${pageContext.request.contextPath}/fsu?pageIndex=" + page;
29 }
30
31 function showPageInfo(){
32 $("#page-info").html(pageSize + "条/页，共" + totalCounts + "条，第" + pageIndex + "页，共" + totalPages + "页");
33 }
34 </script>
35
36
37 <table class="tableE">
38 <thead>
39 <tr>
40 <th>运单号</th>
41 <th>起始站</th>
42 ...
43 </tr>
44 </thead>
45
46 <tbody>
47 <s:iterator value="list">
48 <tr>
49 <td>${waybillNumber}</td>
50 <td>${origin}</td>
51 ...
52 </tr>
53 </s:iterator>
54 </tbody>
55 </table>
56
57
58 <div id="page-box"></div>
解释：jquery的分页插件，网上一搜索一大堆，我用的是jquery.simplePagination，${pageIndex}、${pageSize}...包括list，这些属性都是后台Action中的model属性
时间： 2024-10-08 19:56:43