Model:
Ext.define('ecms.view.message.messageindexmodel', {
extend: 'Ext.data.Model',
fields: [
{ name: 'source', type:'string' },
{ name:'type', type:'string' },
{ name:'title', type:'string' },
{ name:'url',type:'string' }
]
});
Store:
Ext.define('ecms.view.message.messageindexstore', {
extend: 'Ext.data.Store',
model: 'ecms.view.message.messageindexmodel',
autoLoad: false,
remoteSort: true,
remoteFilter: true,
pageSize: 30,
autoSync: false,
sorters:[{
property:'source',
direction:'ASC'
}],
proxy: {
type: 'jsonp',
url : 'http://localhost:4529/Messagemg/jss.js',
reader: {
type: 'json',
implicitIncludes:true,
record : 'info'
} }
});
调用:
var me = this;
me.store = Ext.create('ecms.view.message.messageindexstore');
me.store.load({
callback: function() {
var user = me.store.first();
alert(user);
}
});
JS:
var info={"info":[{"source":"1","type":"系统公告","title":"dddddddd (2012-01-26)","url":"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74"},{"source":"1","type":"系统公告","title":"dddddddd (2012-01-26)","url":"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74"}]} 跟踪请求已发出,就是读不出任何内容,显示为空
Ext.define('ecms.view.message.messageindexmodel', {
extend: 'Ext.data.Model',
fields: [
{ name: 'source', type:'string' },
{ name:'type', type:'string' },
{ name:'title', type:'string' },
{ name:'url',type:'string' }
]
});
Store:
Ext.define('ecms.view.message.messageindexstore', {
extend: 'Ext.data.Store',
model: 'ecms.view.message.messageindexmodel',
autoLoad: false,
remoteSort: true,
remoteFilter: true,
pageSize: 30,
autoSync: false,
sorters:[{
property:'source',
direction:'ASC'
}],
proxy: {
type: 'jsonp',
url : 'http://localhost:4529/Messagemg/jss.js',
reader: {
type: 'json',
implicitIncludes:true,
record : 'info'
} }
});
调用:
var me = this;
me.store = Ext.create('ecms.view.message.messageindexstore');
me.store.load({
callback: function() {
var user = me.store.first();
alert(user);
}
});
JS:
var info={"info":[{"source":"1","type":"系统公告","title":"dddddddd (2012-01-26)","url":"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74"},{"source":"1","type":"系统公告","title":"dddddddd (2012-01-26)","url":"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74"}]} 跟踪请求已发出,就是读不出任何内容,显示为空
proxy: {
type: 'jsonp',
url : 'http://localhost:4529/Messagemg/jss.js',
reader: {
type: 'json',
implicitIncludes:true,
root : 'info' //感觉问题可能在这里,试试把你的record 换成root
}
}
String cb = Request.Params.Get("cbackf");
info = "{\"success\":true,\"total\":2,\"info\":{[{\"source\":\"1\",\"type\":\"系统公告\",\"title\":\"dddddddd (2012-01-26)\",\"url\":\"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74\"},{\"source\":\"1\",\"type\":\"系统公告\",\"title\":\"dddddddd (2012-01-26)\",\"url\":\"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74\"}]}}";
info = cb + "(" + info + ")";把STORE改成:
proxy: {
type: 'jsonp',
url : 'http://localhost:4529/Messagemg/message_index.aspx',
callbackKey: 'cbackf',
reader : {
type : 'json',
root : 'info',
implicitIncludes:true,
totalCount : 'total'
}
可是问题依旧,问题出在那里呢?josephSC:我修改后还是不行!
你现在确定已经能够成功在网页得到完整的json?如果是,那你的alert后跳出的对话框是空白还是“undefined"还是"Object [object Object] "?你用的监控软件是firebug吧,如果是firebug有没有报其他错?store.load的callback的格式为function(records, options, success)比如:
me.store.load({
callback: function(records, operation, success) {
alert(records); //试一下这样提示框里显示的是什么?
}
});
string cb = Request.Params.Get("cbackf");
string info = "{\"success\":true,\"total\":2,\"info\":{[{\"source\":\"1\",\"type\":\"系统公告\",\"title\":\"dddddddd (2012-01-26)\",\"url\":\"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74\"},{\"source\":\"1\",\"type\":\"系统公告\",\"title\":\"dddddddd (2012-01-26)\",\"url\":\"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74\"}]}}";
info = cb + "(" + info + ")";
Response.Write(info);
Ext.data.JsonP.callback1({"success":true,"total":2,"info":{[{"source":"1","type":"系统公告","title":"dddddddd (2012-01-26)","url":"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74"},{"source":"1","type":"系统公告","title":"dddddddd (2012-01-26)","url":"http://localhost:4529/Messagemg/message_edit_release.aspx?id=74"}]}})
问题依然。josephSC:
你现在确定已经能够成功在网页得到完整的json?
是的如果是,那你的alert后跳出的对话框是空白还是“undefined"还是"Object [object Object] "?
按你修改,ALRET为NULL
修改之前的ALERT为“undefined"你用的监控软件是firebug吧,如果是firebug有没有报其他错?
是的,没有报其他错,一步步调试也没错调用LOAD后,显示LOAD……很长时间后,callback回来,感觉就是请求没有得到响应的,但查看监控,请求是发出了,也给了响应。???
1、JSONP调用须在SERVER用回调函数调用JSON,不能直接返回JSON
2、JSON的格式一定要定义结点,以前一直是自定义解析所以没注意这个细节
3、josephSC说的ROOT一定要定义的
4、问题可能是多个交织在一起引起连锁返应,必要是还是重写比较容易整理思路最后谢谢showbo和josephSC。