@Action(value = "json")
public void json() {
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
Session session=sessionFactory.openSession();
Query<Object[]> query=session.createQuery("select r.rnid, r.rnumber,r.rstate,u.uid,u.uname,u.ucard,u.uphone,u.count,u.ustaydate,u.uenddate from roomnumber r left join r.listuser u");
List<Object[]> room=query.list();
System.err.println(room);
List<User_Roomnumber> list=new ArrayList<User_Roomnumber>();
for (Object[] objects : room) {
User_Roomnumber user=new User_Roomnumber();
user.setRnid((Integer) objects[0]);
user.setRnumber((Integer) objects[1]);
user.setRstate((Integer) objects[2]);
user.setUid((Integer) objects[3]);
user.setUname((String) objects[4]);
user.setUcard((String) objects[5]);
user.setUphone((String) objects[6]);
user.setUcount((Integer)objects[7]);
user.setUstaydate((String) objects[8]);
user.setUenddate((String) objects[9]);
list.add(user);
}
session.beginTransaction().commit();
session.close();
String data = JSON.toJSONString(list);
try {
response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
out.write(data);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
后台代码
$(function(){
$("#dg").edatagrid({
pageList:[5,10,20],
fitColumns :true,
pageSize:5,
url:'json.action',
remoteSort: false,
pagination:true,
toolbar:'#toolbar',
columns:[[
{field:'bi_id',title:'编号',width:80},
{field:'bi_date',title:'日期',width:80,
formatter:function(value,row,index){
var unixTimestamp = new Date(value);
return unixTimestamp.toLocaleDateString();
} },
{field:'uname',title:'用户名字',width:30,editor:{type:'text',options: {required: true}}},
{field:'ucard',title:'身份证号',width:50,editor:{type:'text',options: {required: true}}},
{field:'uphone',title:'手机号',width:40,editor:{type:'text',options: {required: true}}},
{field:'ucount',title:'入住人数',width:30,editor:{type:'text',options: {required: true}}},
{field:'rnid',title:'房间号',width:30,editor:{type:'text',options: {required: true}}},
{field:'ustaydate',title:'入住时间',width:30,editor:{type:'text',options: {required: true}}},
{field:'uenddate',title:'退房时间',width:30,editor:{type:'text',options: {required: true}}},
]]
})
var row = $('#dg').datagrid('reload');
});
报错信息：
java.lang.IllegalArgumentException: org.hibernate.QueryException: could not resolve property: count of: com.entity.UserEntity [select r.rnid, r.rnumber,r.rstate,u.uid,u.uname,u.ucard,u.uphone,u.count,u.ustaydate,u.uenddate from com.entity.RoomnumberEntity r left join r.listuser u]
