GT-Grid使用心得

GT-Grid是国人做的一个列表组建，作者BLOG：http://fins.javaeye.com/blog/214290

坐着已经写了的部分教程还算详细，但是官方API，很多东西是没写的，这里列一些使用中的心得

 

根据自己前台的页面编码，引入本组件的不同编码版本，主要有两个文件：

calendar-cn.js和calendar-cn-utf8.js

gt_msg_cn_gbk.js和gt_msg_cn.js

以上两者，前面都是GBK编码，后面都是UTF-8编码

 

前台传入后台的表格属性，都是用的UTF-8编码，服务器接收到之后，需要根据你自己的设置转码

上述的表格属性是以“_gt_json”为key存放在request的paremeter里

 

服务器返回的数据，只能用PrintWriter写成JSON传回

 

GT-Grid页面传到后台的信息Json格式形如以下：

{"recordType":"object", "pageInfo":{"pageSize":20,"pageNum":1,"totalRowNum":-1,"totalPageNum":0,"startRowNum":1,"endRowNum":-1}, "columnInfo":[ {"id":"no","header":"学号","fieldName":"no","fieldIndex":"no","sortOrder":null,"hidden":false,"exportable":true,"printable":true}, {"id":"name","header":"姓名","fieldName":"name","fieldIndex":"name","sortOrder":null,"hidden":false,"exportable":true,"printable":true}, {"id":"total","header":"总成绩","fieldName":"total","fieldIndex":"total","sortOrder":null,"hidden":false,"exportable":true,"printable":true}, {"id":"detail","header":"详细信息","fieldName":"detail","fieldIndex":"detail","sortOrder":null,"hidden":false,"exportable":true,"printable":true} ], "sortInfo":[], "filterInfo":[], "remotePaging":true, "parameters":{}, "action":"load"}  

用以下javaBean表示：

package gxlu.ims.webapps.gtgrid; import java.io.Serializable; public class GTGridBean implements Serializable { /** * */ private static final long serialVersionUID = 1L; private String recordType; private String[] sortInfo; private String[] filterInfo; private boolean remotePaging; private String action; private PageInfo pageInfo; private ColumnInfo[] columnInfo; private Parameters parameters; public static class PageInfo { private int pageSize; private int pageNum; private int totalPageNum; private int totalRowNum; private int startRowNum; private int endRowNum; public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public int getPageNum() { return pageNum; } public void setPageNum(int pageNum) { this.pageNum = pageNum; } public int getTotalPageNum() { return totalPageNum; } public void setTotalPageNum(int totalPageNum) { this.totalPageNum = totalPageNum; } public int getTotalRowNum() { return totalRowNum; } public void setTotalRowNum(int totalRowNum) { this.totalRowNum = totalRowNum; } public int getStartRowNum() { return startRowNum; } public void setStartRowNum(int startRowNum) { this.startRowNum = startRowNum; } public int getEndRowNum() { return endRowNum; } public void setEndRowNum(int endRowNum) { this.endRowNum = endRowNum; } } public static class ColumnInfo { private String id; private String header; private String fieldName; private String fieldIndex; private String sortOrder; private boolean hidden; private boolean exportable; private boolean printable; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getHeader() { return header; } public void setHeader(String header) { this.header = header; } public String getFieldName() { return fieldName; } public void setFieldName(String fieldName) { this.fieldName = fieldName; } public String getFieldIndex() { return fieldIndex; } public void setFieldIndex(String fieldIndex) { this.fieldIndex = fieldIndex; } public String getSortOrder() { return sortOrder; } public void setSortOrder(String sortOrder) { this.sortOrder = sortOrder; } public boolean isHidden() { return hidden; } public void setHidden(boolean hidden) { this.hidden = hidden; } public boolean isExportable() { return exportable; } public void setExportable(boolean exportable) { this.exportable = exportable; } public boolean isPrintable() { return printable; } public void setPrintable(boolean printable) { this.printable = printable; } } public static class Parameters { } public String getRecordType() { return recordType; } public void setRecordType(String recordType) { this.recordType = recordType; } public PageInfo getPageInfo() { return pageInfo; } public void setPageInfo(PageInfo pageInfo) { this.pageInfo = pageInfo; } public String[] getSortInfo() { return sortInfo; } public void setSortInfo(String[] sortInfo) { this.sortInfo = sortInfo; } public String[] getFilterInfo() { return filterInfo; } public void setFilterInfo(String[] filterInfo) { this.filterInfo = filterInfo; } public boolean isRemotePaging() { return remotePaging; } public void setRemotePaging(boolean remotePaging) { this.remotePaging = remotePaging; } public String getAction() { return action; } public void setAction(String action) { this.action = action; } public static long getSerialversionuid() { return serialVersionUID; } public Parameters getParameters() { return parameters; } public void setParameters(Parameters parameters) { this.parameters = parameters; } public ColumnInfo[] getColumnInfo() { return columnInfo; } public void setColumnInfo(ColumnInfo[] columnInfo) { this.columnInfo = columnInfo; } }  

 

 

GT-Grid的分页信息（就是上面的pageInfo），其中的startRowNum是从1开始的，这跟Hibernate的Criteria起始是0不同，注意转换！但是页面内record的rowNo又是从0开始的。。。这点要注意