jQuery AJAX 方法 success()后台传来的4种数据

/**(1)用$("#content-wrapper").html(data);显示页面*/$.ajax({ ???async : false, ???cache : false, ???type : ‘POST‘, ???url : ‘area/prepareCreate‘, ???error : function() { ???????alert(‘smx失败 ‘); ???}, ???success : function(data) { ???????$("#content-wrapper").html(data); ???}});

/* * (1)不能有注解@RespoonseBody ?* (2)返回值类型是String,代表页面所在的文件夹 * (3)如果返回"error"，执行ajax的error方法 */@RequestMapping(value = "area/prepareCreate", method = RequestMethod.POST)public String editAreaWithFile() { ???return "area/create; ???// return "error";}

$.ajax({ ???async : false, ???cache : false, ???type : ‘POST‘, ???url : ‘app/area/delete‘, ???dataType : "json", ???error : function() { ???????alert(‘smx失败 ‘); ???}, ???success : function(data) { ???/**重点：前台接收到返回值，直接处理就行*/ ???????alert(data); ???}});

/**(1)用@ResponseBody注解(2)可以接收各种参数，url，data(名称匹配或@RequestBody)(3)返回值类型就是基本类型*/@ResponseBody@RequestMapping(value = "area/delete", method = RequestMethod.POST)public long editArea() { ???//处理参数 ???return 3; ??}

/** * flag为1 :操作失败 * msg：失败原因； * flag为0: 操作成功*/public class AjaxResponseMsg { ???private int flag; ???private String msg; }

$.ajax({ ???async : false, ???cache : false, ???type : ‘POST‘, ???url : ‘app/area/delete‘, ???error : function() { ???????alert(‘smx失败 ‘); ???}, ???success : function(data) { ?????????var jsonData = JSON.parse(data); ???????????????????if (jsonData .flag == 0) {//请求成功 ???????????alert("后台操作成果"); ?????????} else { ???????????alert(jsonData .msg); ?????????} ???}});

 ?/**（1）添加注解@ResponseBody ???(2)可以接收参数 ???(3)返回类型就是实体类*/ ???@ResponseBody ???@RequestMapping(value = "area/delete", method = RequestMethod.POST) ???public AjaxResponseMsg editAreaWithFile() { ???????// 做操作 ???????boolean result = true ???????AjaxResponseMsg ajaxMsg = new AjaxResponseMsg(); ???????if (result == true) ???????????ajaxMsg.setFlag(0); ???????else { ???????????ajaxMsg.setFlag(1); ???????????ajaxMsg.setMsg("不能给一个传感器添加重复设备"); ???????} ???????return ajaxMsg; // 返回给前台一个实体类，包括是否操作成功，及失败原因 ???}

public class Section{ ???private Long id; //id ???private String name; //名称 ?????????}

$.ajax({ ???async : false, ???cache : false, ???type : ‘POST‘, ???url : "section/getSections", ???error : function() { ???????alert("失败"); ???}, ???success : function(data) { ???????var jsonData = JSON.parse(data); //jsonData是该下路下的所有区间（json格式） ????????for (var i = 0; i < jsonData.length; i++) { ???????????alert(jsonData[i].id); ???????????alert(jsonData[i].name); ???????????????????????????} ???}})

@ResponseBody@RequestMapping("/section/getSections")@RequiresPermissions("section:view")public List<Section> getSections() { ???List<Section> sections = new List<Section>(); ???return sections;}

public class ChartSeries { ???private String name; //曲线名称 ????????private List<Float> data; //曲线的纵坐标 ????private List<Date> occurTime; //曲线的横坐标 ????//添加get set方法 ???}

$.ajax({ ???????????url : "/dataRecord/chart" , //获取数据列 ????????????type : ‘GET‘, ???????????data : { ???????????}, ???????????success : function(data) { ????????????????formatStringToJson(data);//对数据进行处理 ???????????} ???????}); ???function formatStringToJson(data) { ???????jsonData = JSON.parse(data); ?//把后台传来的数据转来JSON格式 ???????//jsonData是二维数组，因为实体类ChartSeries的字段data也是个list ???????for (x in jsonData) { ?//遍历JSON格式的数组取元素, x代表下标 ???????????for (y in jsonData[x].data) { ????????????????????????????????alert(jsonData[x].occurTime[y]) ;//依次获取 ?????????????????alert(jsonData[x].data[y]); ???????????} ???????} ???}

@ResponseBody@RequiresPermissions("dataRecord:view")@RequestMapping(value = "/dataRecord/chart}", method = RequestMethod.GET)public List<ChartSeries> getChart(){ ????????????List<ChartSeries> list = ?new List<ChartSeries>(); ???//给list赋值 ???return list; // list}