使用Jquery+Ajax+Json如何实现分页显示附JAVA+JQuery实现异步分页

网络编程 2024/12/26 佚名

3 1 2

先给大家展示下运行效果图：

1.后台action产生json数据。

List blackList = blackService.getBlackInfoList(mobileNum, gatewayid, startDate, endDate); 
int totalRows = blackList.size(); 
StringBuffer sb = new StringBuffer(); 
     sb.append("{\"totalCount\":\""+totalRows+"\","); 
     sb.append("\"jsonRoot\":["); 
     for (int i=0;i<blackList.size();i++) { 
       LBlack blackInfo = (LBlack)blackList.get(i); 
       sb.append("{\"id\":\""+ blackInfo.getId()); 
       sb.append("\",");  
       sb.append("\"mobile\":\""+ blackInfo.getMobile()); 
       sb.append("\",");  
       sb.append("\"province\":\""+ blackInfo.getProvince()); 
       sb.append("\",");  
       sb.append("\"gateway\":\""+ blackInfo.getGateway()); 
       sb.append("\","); 
       sb.append("\"insertTime\":\""+ blackInfo.getInsertTime()); 
       sb.append("\","); 
       sb.append("\"remark\":\""+ blackInfo.getRemark()); 
       sb.append("\""); 
       sb.append("},"); 
     } 
     sb.deleteCharAt(sb.lastIndexOf(",")); // 删去最后一个逗号 
     sb.append("]}");  
     HttpServletResponse response = ServletActionContext.getResponse();      
     response.setContentType("text/plain"); 
     response.getWriter().print(sb);

2.struts.xml相关配置

<action name="blackList" class="blackAction" method="blackList"> 
  <!--plaintext用于显示页面原始代码的结果类型--> 
  <result type="plainText"> 
  <param name="charSet">UTF-8</param> 
  <param name="location">/WEB-INF/jsp/manage/black.jsp</param> 
  </result> 
</action>

3.js获取json数据分页显示

function getJSONData(pn) { 
  // alert(pn); 
  $.getJSON("blackList.ce", function(data) { 
    var totalCount = data.totalCount; // 总记录数 
    var pageSize = 10; // 每页显示几条记录 
    var pageTotal = Math.ceil(totalCount / pageSize); // 总页数 
    var startPage = pageSize * (pn - 1); 
    var endPage = startPage + pageSize - 1; 
    var $ul = $("#json-list"); 
    $ul.empty(); 
    for (var i = 0; i < pageSize; i++) { 
      $ul.append('<li class="li-tag"></li>'); 
    } 
    var dataRoot = data.jsonRoot; 
    if (pageTotal == 1) {   // 当只有一页时 
      for (var j = 0; j < totalCount; j++) { 
        $(".li-tag").eq(j).append("<span class='col1'><input type='checkbox' value='"+parseInt(j + 1)+"'/></span>") 
        .append("<span class='col2'>" + parseInt(j + 1) 
            + "</span>").append("<span class='col3'>" + dataRoot[j].mobile 
            + "</span>").append("<span class='col4'>" + dataRoot[j].province 
            + "</span>").append("<span class='col5'>" + dataRoot[j].gateway 
            + "</span>").append("<span class='col6'>" + dataRoot[j].insertTime 
            + "</span>").append("<span class='col7'>" + dataRoot[j].remark 
            + "</span>") 
      } 
    } else { 
      for (var j = startPage, k = 0; j < endPage, k < pageSize; j++, k++) { 
        if( j == totalCount){ 
          break;    // 当遍历到最后一条记录时，跳出循环 
        } 
        $(".li-tag").eq(k).append("<span class='col1'><input type='checkbox' value='"+parseInt(j + 1)+"'/></span>") 
        .append("<span class='col2'>" + parseInt(j + 1) 
            + "</span>").append("<span class='col3'>" + dataRoot[j].mobile 
            + "</span>").append("<span class='col4'>" + dataRoot[j].province 
            + "</span>").append("<span class='col5'>" + dataRoot[j].gateway 
            + "</span>").append("<span class='col6'>" + dataRoot[j].insertTime 
            + "</span>").append("<span class='col7'>" + dataRoot[j].remark 
            + "</span>") 
      } 
    } 
    $(".page-count").text(pageTotal); 
  }) 
} 
function getPage() { 
  $.getJSON("blackList.ce", function(data) { 
        pn = 1; 
        var totalCount = data.totalCount; // 总记录数 
        var pageSize = 10; // 每页显示几条记录 
        var pageTotal = Math.ceil(totalCount / pageSize); // 总页数 
        $("#next").click(function() { 
              if (pn == pageTotal) { 
                alert("后面没有了"); 
                pn = pageTotal; 
              } else { 
                pn++; 
                gotoPage(pn); 
              } 
            }); 
        $("#prev").click(function() { 
              if (pn == 1) { 
                alert("前面没有了"); 
                pn = 1; 
              } else { 
                pn--; 
                gotoPage(pn); 
              } 
            }) 
        $("#firstPage").click(function() { 
              pn = 1; 
              gotoPage(pn); 
            }); 
        $("#lastPage").click(function() { 
              pn = pageTotal; 
              gotoPage(pn); 
            }); 
        $("#page-jump").click(function(){ 
          if($(".page-num").val() <= pageTotal && $(".page-num").val() != ''){ 
            pn = $(".page-num").val(); 
            gotoPage(pn); 
          }else{ 
            alert("您输入的页码有误！"); 
            $(".page-num").val('').focus(); 
          } 
        }) 
        $("#firstPage").trigger("click"); 
      }) 
} 
function gotoPage(pn) { 
  // alert(pn); 
  $(".current-page").text(pn); 
  getJSONData(pn) 
} 
$(function() { 
  getPage(); 
})

ps：JAVA+JQuery实现异步分页

最近一个项目要求实现异步分页，简单的写了一下，不好的请指出~

/** 
*分页类 
*/ 
public class PageBean { 
  publicint rowCount = 0; // 总记录数 
  publicint currentPage = 1;// 当前页数 
  publicint sizePerPage = 20;// 每页显示条数 
  publicint pageCount = 0;// 总页数 
  publicString pageURL;// 请求URL 
  publicString pageDisplay;// JSP页面显示 
  publicString pageStyle = "numberStyle";// 分页样式 
  publicint pagePreOffset = 10;// 向前偏移量 
  publicint pageNextOffset = 9;// 向后偏移量 
  publicString pageCss;// 预留 
  publicString getPageCss() { 
    returnpageCss; 
  } 
  publicvoid setPageCss(String pageCss) { 
    this.pageCss = pageCss; 
  } 
  publicString getPageStyle() { 
    returnpageStyle; 
  } 
  publicvoid setPageStyle(String pageStyle) { 
    this.pageStyle = pageStyle; 
  } 
  publicint getPagePreOffset() { 
    returnpagePreOffset; 
  } 
  publicvoid setPagePreOffset(intpagePreOffset) { 
    this.pagePreOffset = pagePreOffset; 
  } 
  publicint getPageNextOffset() { 
    returnpageNextOffset; 
  } 
  publicvoid setPageNextOffset(intpageNextOffset) { 
    this.pageNextOffset = pageNextOffset; 
  } 
  publicString getPageDisplay() { 
    String nextClick=" onclick='ajaxpage(""+this.pageURL+ "" + (this.currentPage + 1)+"");return false;' "; 
    String preClick=" onclick='ajaxpage(""+this.pageURL+ "" + (this.currentPage - 1)+"");return false;' "; 
    String firstClick=" onclick='ajaxpage(""+this.pageURL+ "");return false;' "; 
    String lastClick=" onclick='ajaxpage(""+this.pageURL+ "" + (this.getPageCount())+"");return false;' "; 
    String onChange=" onchange='ajaxpage(""+this.pageURL+ "" + (1)+"");return false;' "; 
    StringBuffer pageString =new StringBuffer(); 
    pageString.append("<div class='"+ this.pageStyle +"'><span >"); 
    // 数字样式 
    if("numberStyle".equalsIgnoreCase(this.pageStyle)) { 
      // 如果只有一页，不需要分页 
      if(this.getPageCount() ==1) { 
        // pageString.append("<strong> 1</strong> "); 
      }else { 
        if(this.currentPage >1) {// 如果当前页数大于1，<< <可用 
          pageString.append("<a class='pagination-first' "+firstClick+" title='首页' href='" + this.pageURL 
              +""); 
          pageString.append("<a class='pagination-prev' "+preClick+"title='上一页' href='" + this.pageURL 
              +"" + (this.currentPage -1) 
              +"'><</a> "); 
        }else { 
          pageString 
              .append("<a class='pagination-first'><<</a> "); 
          pageString 
              .append("<a class='pagination-prev'><</a> "); 
        } 
        // 定义向前偏移量 
        intpreOffset = this.currentPage -1 > this.pagePreOffset " onclick='ajaxpage(""+this.pageURL+ "" + (i)+"");return false;' "; 
          if(this.currentPage == i) {// 当前页要加粗显示 
            pageString 
                .append("<strong style='color:black;border:0'>" 
                    + i +"</strong> "); 
          }else { 
            pageString.append("<a "+numClick+"href='"+ this.pageURL 
                +"" + i + "'>" + i +"</a> "); 
          } 
        } 
        // 如果当前页小于总页数，> 可用 
        if(this.currentPage <this.getPageCount()) { 
          pageString.append("<a class='pagination-next' "+nextClick+" title='下一页' href='" + this.pageURL 
              +"" + (this.currentPage +1) 
              +"'</a> "); 
          pageString.append("<a class='pagination-last' "+lastClick+"title='尾页' href='" + this.pageURL 
              +"" + (this.getPageCount()) +"'></a> "); 
        }else { 
          pageString 
              .append("<a class='pagination-next' </a> "); 
          pageString 
              .append("<a class='pagination-last'></a> "); 
        }  
        pageString.append("<select id='pageSelect' "+onChange+">"+this.getOptions()+"</select>"); 
      } 
    }else if("normalStyle".equalsIgnoreCase(this.pageStyle)) { 
      if(this.getPageCount() ==1) { 
        pageString.append("<strong> 共1页</strong> "); 
      }else { 
        if(this.currentPage >1) { 
          pageString.append("<a class='pagination-first' "+firstClick+" title='首页' href='" + this.pageURL 
              +""); 
          pageString.append("<a class='pagination-prev' "+preClick+"title='上一页' href='" + this.pageURL 
              +"" + (this.currentPage -1) 
              +"'><</a> "); 
        }else { 
          pageString 
            .append("<a class='pagination-first'><<</a> "); 
          pageString 
            .append("<a class='pagination-prev'><</a> "); 
        } 
        pageString.append("<span class='pageinfo'>第"+this.currentPage+"页/"+this.pageCount+"页</span>"); 
        if(this.currentPage <this.getPageCount()) { 
          pageString.append("<a class='pagination-next' "+nextClick+" title='下一页' href='" + this.pageURL 
              +"" + (this.currentPage +1) 
              +"'</a> "); 
          pageString.append("<a class='pagination-last' "+lastClick+"title='尾页' href='" + this.pageURL 
              +"" + (this.getPageCount()) +"'></a> "); 
        }else { 
          pageString 
            .append("<a class='pagination-next' </a> "); 
          pageString 
            .append("<a class='pagination-last'></a> "); 
        } 
        pageString.append("<select id='pageSelect' "+onChange+">"+this.getOptions()+"</select>"); 
      } 
    } 
    pageString.append("</span></div>"); 
    this.pageDisplay = pageString.toString(); 
    returnpageDisplay; 
  } 
  publicvoid setPageDisplay(String pageDisplay) { 
    this.pageDisplay = pageDisplay; 
  } 
  publicString getPageURL() { 
    returnpageURL; 
  } 
  publicvoid setPageURL(String pageURL) { 
    this.pageURL = pageURL; 
  } 
  publicint getPageCount() { 
    this.pageCount =this.rowCount %this.sizePerPage ==0 "<option value=10>10</option><option value=20>20</option><option value=30>30</option><option value=50>50</option><option value=100>100</option>"); 
      break; 
    case20: 
      sb.append("<option value=20>20</option><option value=10>10</option><option value=30>30</option><option value=50>50</option><option value=100>100</option>"); 
      break; 
    case30: 
      sb.append("<option value=30>30</option><option value=10>10</option><option value=20>20</option><option value=50>50</option><option value=100>100</option>"); 
      break; 
    case50: 
      sb.append("<option value=50>50</option><option value=10>10</option><option value=20>20</option><option value=30>30</option><option value=100>100</option>"); 
      break; 
    case100: 
      sb.append("<option value=100>100</option><option value=10>10</option><option value=20>20</option><option value=30>30</option><option value=50>50</option>"); 
      break; 
    } 
    returnsb.toString(); 
  } 
}

//后台调用 
PageBean page = new PageBean(); 
setPageInfo(list,request); 
public void setPageInfo(List list,HttpServletRequest request){ 
    page.setCurrentPage(this.getCurrentPage()); 
    if(request.getParameter("perSize")==null){ 
      page.setSizePerPage(20);//default 20 
    } 
    else{ 
      page.setSizePerPage(Integer.valueOf(request.getParameter("perSize"))); 
    } 
    page.setRowCount(list.size()); 
    //page.setPageStyle("normalStyle"); 
    //page.setPagePreOffset(5);//default 10 
    //page.setPageNextOffset(4);//default 9 
    page.setPageURL(request.getRequestURL().toString()); 
} 
[css] view plaincopyprint"&perSize="+$("#pageSelect").val(); 
  $.ajax( { 
  type : "POST", 
  url : action, 
  success : function(msg) { 
  //回调函数，后台拼接字符串返回msg 
    //删除原有数据，添加新数据 
    //比如：$("#displayTable>thead").nextAll().remove();$("#displayTable").append(msg); 
  } 
  }); 
}

以上就是本文给大家介绍的使用Jquery+Ajax+Json如何实现分页显示附JAVA+JQuery实现异步分页，希望对大家有所帮助。

jquery_ajax_json分页,Jquery_Ajax_Json分页

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