在jqGrid中显示Json数组数据
问题描述:
我正在开发基于Web的项目与Spring MVC,休眠& jQuery与码头服务器.. 我想显示有关JSON响应的数据。 这里是控制器类的json方法。(我需要表现出港口在我的网格细节)在jqGrid中显示Json数组数据
@Entity
@Table(name = “港湾”) 公共类港{
@Id
@Column(name="HARBOUR_ID")
@GeneratedValue
private Integer harbourId;
@Column(name="HARBOURCODE")
private String harbourCode;
@Column(name="HARBOURNAME")
private String harbourName;
@Column(name="STREETNO")
private String streetNo;
@Column(name="STREETONE")
private String streetOne;
@Column(name="STREETTWO")
private String streetTwo;
@Column(name="CITYNAME")
private String cityName;
@Column(name="PROVINCE")
private String province;
@Column(name="ALL_ID")
private String allocationId; & Getter & Setters
&这是我的控制器类方法,用于生成json数组作为响应
@RequestMapping("/selectHarbour")
public ModelAndView selectHarbour(Map<String, Object> map,HttpServletRequest request,
HttpServletResponse response) {
try {
List <Harbour> list= harbourService.listHarbour();
JSONArray jsonArray=new JSONArray();
for(Harbour harbour:list){
JSONArray array=new JSONArray();
array.put(harbour.getHarbourId());
array.put(harbour.getHarbourCode());
array.put(harbour.getHarbourName());
array.put(harbour.getCityName());
array.put(harbour.getProvince());
jsonArray.put(array);
}
response.getWriter().write(jsonArray.toString());
return null;
}catch(Exception exception){
System.out.println("error is "+exception);
}
return null;
}
最后,这是我的jquery生成jqGrid。
<td colspan="2">
<!-- Insert Data Tables -->
<table id="list5"></table>
<div id="pager5"></div>
<br />
<a href="#" id="a1">Get data from selected row</a>
<br />
</td>
<script type="text/javascript">
jQuery("#list5").jqGrid({
url:'selectHarbour.html',
datatype: "json",
colNames:['Inv No','Date', 'Client', 'Amount','Tax','Total','Notes'],
colModel:[
{name:'id',index:'id', width:55},
{name:'invdate',index:'invdate', width:90},
{name:'name',index:'name', width:100},
{name:'amount',index:'amount', width:80, align:"right"},
{name:'tax',index:'tax', width:80, align:"right"},
{name:'total',index:'total', width:80,align:"right"},
{name:'note',index:'note', width:150, sortable:false}
],
rowNum:10,
rowList:[10,20,30],
pager: '#pager5',
sortname: 'id',
viewrecords: true,
sortorder: "desc",
caption:"Simple data manipulation",
editurl:""
}).navGrid("#pager5",
{edit:false,add:false,del:false});
jQuery("#a1").click(function(){
var id = jQuery("#list5").jqGrid('getGridParam','selrow');
if (id) {
var ret = jQuery("#list5").jqGrid('getRowData',id);
alert("id="+ret.id+" invdate="+ret.invdate+"...");
} else { alert("Please select row");}
});
</script>
&
萤火虫这样表示我的反应..
[5, “CLM”, “科伦坡”, “科伦坡”, “西方”],[ 6,“HMB”,“Hambanthota”,“Colombo 07”,“Southern”]]
然后朋友,我的错误在哪里? ? ?数据未显示在我的网格中
答
您的控制器需要一些修改;我假设客户发布一些在这个例子:
@SuppressWarnings("unchecked")
@RequestMapping(value = "/selectHarbour", method = POST)
public ResponseEntity<String> createEntity(HttpServletRequest request, @RequestBody Specialist specialist) {
specialistBo.save(specialist);
final int id = specialist.getId();
URI uri = new UriTemplate("{requestUrl}/{username}").expand(request.getRequestURL().toString(), id);
final HttpHeaders headers = new HttpHeaders();
headers.put("Location", singletonList(uri.toASCIIString()));
return new ResponseEntity<String>(headers, HttpStatus.CREATED);
}
如果你想要得到的东西应该是与此类似:
@RequestMapping(method = GET)
public
@ResponseBody
Page<Specialist> listEntities(@RequestParam(value = "page", required = false, defaultValue = "1") int page,
@RequestParam(value = "max", required = false, defaultValue = "5") int max,
@RequestParam(value = "sidx", required = false, defaultValue = "grid_name") String sidx,
@RequestParam(value = "sord", required = false, defaultValue = "desc") String sord,
@RequestParam(value = "filters", required = false, defaultValue = "") String filters) {
return specialistBo.getSpecialist(page, max, stringStringMap.get(sidx), sord, filters);
}
@Transactional(readOnly = true)
public Page<Specialist> getSpecialist(int page, int max, String sidx, String sord, String filters) {
int count = ((Long) getSession().createQuery("select count(*) from Specialist").iterate().next()).intValue();
final int start = max * page - max;
@SuppressWarnings("unchecked")
List<Specialist> list =
getSession().createCriteria(Specialist.class)
.add(Restrictions.sqlRestriction("name like '%%' order by %s %s limit %s,%s")).setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY).list();
return new Page<Specialist>(list, page, max, count);
}
@XmlRootElement
@XmlSeeAlso({Specialist.class, Aptitude.class})
public class Page<T> {
private List<T> rows;
private int page;
private int max;
private int total;
您将需要为Page创建getter和setter。希望这会有所帮助
是否需要jsonReader选项? – priyalhdp