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服务端返回json类型数据，解析问题
服务端MIME使用text/html 类型 返回普通json字符串；
jquery.dtgrid.js ： line ：240 在ajax的success回调函数中第一句加入验证
$.ajax({
type:‘post‘,
url:url,
data:params,
contentType: "application/x-www-form-urlencoded; charset=utf-8",
beforeSend: function(xhr) {xhr.setRequestHeader("__REQUEST_TYPE", "AJAX_REQUEST");},
success:function(pager){
if(typeof pager === "string"){
pager = $.parseJSON(pager);
}
//如果出错表示有可能是程序问题或高级查询方案配置有误
if(!pager.isSuccess){
$.fn.DtGrid.tools.toast($.fn.DtGrid.lang[dtGridReflectionObj.option.lang].errors.ajaxLoadError, ‘error‘, 5000);
dtGridReflectionObj.hideProcessBar();
return;
}
服务端view构建，
public class DTGridView {
/**
* 用途：高级查询的查询参数合集，将由组件根据用户选择自行生成。<br/>
*/
private List<String> advanceQueryConditions;
/**
* 用途：高级查询的排序参数合集，将由组件根据用户选择自行生成。<br/>
*/
private List<String> advanceQuerySorts;
/**
* 用途：是否导出全部数据，将由组件根据用户选择自行处理。<br/>
*/
private boolean exportAllData = false;
/**
* 用途：导出的列集合，将由组件根据用户选择自行处理。<br/>
*/
private List<String> exportColumns;
/**
* 用途：导出的数据是否已经被处理。<br/>
* 该属性为前后台的一个数据处理标识，经由resolution、数据格式化等操作完成处理的数据被视为已处理。<br/>
*/
private boolean exportDataIsProcessed;
/**
* 用途：高级查询的查询参数合集，将由组件根据用户选择自行生成。<br/>
*/
private String exportFileName;
/**
* 用途：导出的文件类型，将由组件根据用户选择自行处理。<br/>
*/
private String exportType;
/**
* 用途：展示的数据结果集。<br/>
*/
private List<Map<String, Object>> exhibitDatas;
/**
* 用途：导出的数据集合，将由组件根据用户选择自行生成，生成的导出数据均为处理后的数据。<br/>
*/
private List<Map<String, Object>> exportDatas;
/**
* 用途：快速查询的参数合集，将由组件根据用户选择自行生成。<br/>
*/
private Map<String, Object> fastQueryParameters;
/**
* 用途：用于判断前台的交互信息是否为导出的动作。<br/>
*/
private boolean isExport;
/**
* 用途：数据是否加载成功，若查询SQL出现错误或高级查询中配置错误，则该返回值为false，正确查询则为true。<br/>
*/
private boolean isSuccess;
/**
* 用途：当前页号。<br/>
* 特殊说明：该参数可以手动修改。
*/
private int nowPage;
/**
* 用途：当前查询的纪录总页数。 <br/>
*/
private int pageCount;
/**
* 用途：每页的显示的记录条数。<br/>
*/
private int pageSize;
/**
* 用途：自定义参数集合。该参数可通过Javascript手动设置，属性类型为Object对象。<br/>
* 可以通过Javascript设置参数，设置完成后通过服务器端封装的Pager对象访问对象中的parameters属性即可获得对应参数集合，<br/>
* 该集合对应Java服务器为Map对象。
*/
private Map<String, Object> parameters;
/**
* 用途：当前查询的纪录总数。<br/>
*/
private int recordCount;
/**
* 用途：开始的记录号。<br/>
*/
private int startRecord;
/**
* 默认初始化数据
*/
public DTGridView() {
this.advanceQueryConditions = Lists.newArrayList();
this.advanceQuerySorts = Lists.newArrayList();
this.exportAllData = false;
this.exportColumns = Lists.newArrayList();
this.exportDataIsProcessed = false;
this.exportFileName = "exportfilename";
this.exportType = "";
this.exhibitDatas = Lists.newArrayList();
this.exportDatas = Lists.newArrayList();
this.fastQueryParameters = Maps.newHashMap();
this.isExport = false;
this.isSuccess = false;
this.nowPage = 1;
this.pageCount = 0;
this.pageSize = 0;
this.parameters = Maps.newHashMap();
this.recordCount = 0;
this.startRecord = 0;
}
public List<String> getAdvanceQueryConditions() {
return advanceQueryConditions;
}
public void setAdvanceQueryConditions(List<String> advanceQueryConditions) {
this.advanceQueryConditions = advanceQueryConditions;
}
public List<String> getAdvanceQuerySorts() {
return advanceQuerySorts;
}
public void setAdvanceQuerySorts(List<String> advanceQuerySorts) {
this.advanceQuerySorts = advanceQuerySorts;
}
public boolean getExportAllData() {
return exportAllData;
}
public void setExportAllData(boolean exportAllData) {
this.exportAllData = exportAllData;
}
public List<String> getExportColumns() {
return exportColumns;
}
public void setExportColumns(List<String> exportColumns) {
this.exportColumns = exportColumns;
}
public boolean getExportDataIsProcessed() {
return exportDataIsProcessed;
}
public void setExportDataIsProcessed(boolean exportDataIsProcessed) {
this.exportDataIsProcessed = exportDataIsProcessed;
}
public String getExportFileName() {
return exportFileName;
}
public void setExportFileName(String exportFileName) {
this.exportFileName = exportFileName;
}
public String getExportType() {
return exportType;
}
public void setExportType(String exportType) {
this.exportType = exportType;
}
public List<Map<String, Object>> getExhibitDatas() {
return exhibitDatas;
}
public void setExhibitDatas(List<Map<String, Object>> exhibitDatas) {
this.exhibitDatas = exhibitDatas;
}
public List<Map<String, Object>> getExportDatas() {
return exportDatas;
}
public void setExportDatas(List<Map<String, Object>> exportDatas) {
this.exportDatas = exportDatas;
}
public Map<String, Object> getFastQueryParameters() {
return fastQueryParameters;
}
public void setFastQueryParameters(Map<String, Object> fastQueryParameters) {
this.fastQueryParameters = fastQueryParameters;
}
/**
* @WARN 注意使用idea 根据属性生成getter setter时，
* boolean值类型的方法名称，ide生成getExport，实际变量名isExport，应生成getIsExport
* @return
*/
public boolean getIsExport() {
return isExport;
}
public void setIsExport(boolean isExport) {
this.isExport = isExport;
}
/**
* @WARN 注意使用idea 根据属性生成getter setter时，
* boolean值类型的方法名称，ide生成getSuccess，实际变量名IsSuccess，应生成getIsSuccess
* @return
*/
public boolean getIsSuccess() {
return isSuccess;
}
public void setIsSuccess(boolean isSuccess) {
this.isSuccess = isSuccess;
}
public int getNowPage() {
return nowPage;
}
public void setNowPage(int nowPage) {
this.nowPage = nowPage;
}
public int getPageCount() {
return pageCount;
}
public void setPageCount(int pageCount) {
this.pageCount = pageCount;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public Map<String, Object> getParameters() {
return parameters;
}
public void setParameters(Map<String, Object> parameters) {
this.parameters = parameters;
}
public int getRecordCount() {
return recordCount;
}
public void setRecordCount(int recordCount) {
this.recordCount = recordCount;
}
public int getStartRecord() {
return startRecord;
}
public void setStartRecord(int startRecord) {
this.startRecord = startRecord;
}
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原文地址：http://my.oschina.net/u/261246/blog/531877
