ext前台接收action传过来的json数据示例_extjs

Ext.Ajax.request({
method:'POST',//请求方式
params : {dagl_code:dagl_code},
url:lcwPath+"/daxt/lcgl.shtml?method=getJgBycode",//请求的url地址
success: function(response, opts) {
if(response.responseText!='{}'){
alert(response.responseText);
//第一种方法
var dagl_jg = Ext.util.JSON.decode(response.responseText).dagl_jg;
//第二种方法
var json = eval("(" + re.responseText + ")");
var dagl_jg= json.dagl_jg;

var org_mc = Ext.util.JSON.decode(response.responseText).org_mc;
var lccode = Ext.util.JSON.decode(response.responseText).lccode;
var lcname = Ext.util.JSON.decode(response.responseText).lcname;
Ext.getCmp("jgs").comboHidden.setValue(dagl_jg);
Ext.getCmp('jgs').setValue(org_mc);
Ext.getCmp('dagl_jg').setValue(dagl_jg);
Ext.getCmp('sslc').setValue(lccode);
Ext.getCmp('sslc').setRawValue(lcname);

var dagl_jg = Ext.getCmp('jgs').comboHidden.getValue();
lcStore.proxy = new Ext.data.HttpProxy({url: lcwPath + '/daxt/lcgl.shtml?method=getDaxx&dagl_type=L&dagl_jg=' + dagl_jg});
lcStore.load();
Ext.getCmp('lcbh').setValue('');
}else{//值没有，清空信息
Ext.MessageBox.show({
title:'提示',
msg:config.string.NOTNUMBERMSG_OR_NUMBERLOSEEFFICACY,
minWidth:270,
icon:Ext.MessageBox.WARNING,
buttons:{"ok":"关闭"},
fn:function(e){Ext.MessageBox.hide();},
closable:true
});
Ext.getCmp("jgs").setValue("");
Ext.getCmp("lcbh").setValue("");
}
},
failure: function(response, opts) {
Ext.MessageBox.show({
title:'系统提示',
msg:'系统出现非预期异常',
minWidth:270,
icon:Ext.MessageBox.WARNING,
buttons:{"ok":"关闭"},
fn:function(e){Ext.MessageBox.hide();},
closable:true
});
}

});