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1. Ext.Ajax.request Ext.Ajax.request({ url: '../xxx',method:"POST",params: {paramName: paramValue},success: function(resp,opts){ //返回的对象Ext.util.JSON.decode(request.responseText) var respText = Ext.util.JSON.decode(resp.responseText); var msg= respText.msg; Ext.MessageBox.alert('提示',msg); },failure: function(resp,opts){ //返回的对象Ext.util.JSON.decode(request.responseText) var respText = Ext.util.JSON.decode(resp.responseText); var msg= respText.msg; Ext.MessageBox.alert('提示',msg); } }); 2. form.getForm().submit() this.formPanel.getForm().submit({ waitTitle: "请稍候",waitMsg : '提交数据,请稍候...',success: function() { myDialog.hide(); store.reload(); },failure: function(form,action) { Ext.MessageBox.alert('提示',action.result.msg); return; },scope: this });