目录
写在前面WebApi Get 请求 1.无参数的请求2.一个参数的请求3.多个参数的请求4.实体参数的请求WebApi Post 请求 1.键值对请求2.dynamic 动态类型请求3.JObject 参数请求4.实体类 请求上一篇，我已经写了如何快速的创建一个webapi项目。接下来，说一下webapi相关的路由请求吧。
我们来创建一个包含读/写操作的web api 2控制器。
我们仔细看这个初始的web api，我们会发现
1.在控制器的方法中，会默认一种格式的请求。而默认的则是Post请求。
2.在控制器的方法中，不会默认为Get请求。所以，需要请求数据时，需要加上前缀【HttpGet】。
3.在控制器的方法中，请求数据用Get请求，删除数据用Delete请求，添加数据用Post请求，编辑数据会用到Put请求。而它们所对应的前缀则分别是【HttpGet】，【HttpDelete】，【HttpPost】，【HttpPut】。
4.在控制器的方法中，我们会发现【FromBody】]这个属性。而它作用就是指定参数来自于外部请求。
需要注意的是：使用其传递参数，需要特定的格式。而这样的格式不是常见得Key=Value得键值对的形式。模型绑定器希望【FromBody】找到没有键名的值，也就是=value,不是Key=Value。
5.在控制器的方法中，还会有【FromUri】属性。它的作用就是指定参数来自url。
前台页面
$.ajax({ url: "../api/Home/GetData", type: "Get", datatype: "json", contentType: "application/json", }).done(function (msg) {}).fail(function (e) {});后台页面
public class DeviceStatus { public int ID {get;set;} public string Power { get; set; } public string Mode { get; set; } public string Fan { get; set; } public int TempSet { get; set; } public string UpdateTime { get; set; } } public List<DeviceStatus> GetDeviceStatus() { var devi = new List<DeviceStatus> { new DeviceStatus{ID=1,Power="开",Mode="制冷",Fan="低",TempSet=10,UpdateTime="2019-08-01 17:00:00"}, new DeviceStatus{ID=2,Power="关",Mode="制热",Fan="低",TempSet=20,UpdateTime="2019-08-02 17:00:00"}, new DeviceStatus{ID=3,Power="开",Mode="除湿",Fan="高",TempSet=30,UpdateTime="2019-08-03 17:00:00"}, new DeviceStatus{ID=4,Power="关",Mode="制热",Fan="中",TempSet=40,UpdateTime="2019-08-04 17:00:00"}, new DeviceStatus{ID=4,Power="关",Mode="制热",Fan="高",TempSet=50,UpdateTime="2019-08-05 17:00:00"}, }; var temp = (from u in devi select u).ToList(); return temp; } [HttpGet] public IEnumerable<DeviceStatus> GetData() { return GetDeviceStatus(); }显示结果
前台页面请求
$.ajax({ url: "../api/Home/GetOneParameter", type: "Get", datatype: "json", contentType: "application/json", data: { ID: 2 } }).done(function (msg) { alert(JSON.stringify(msg)); }).fail(function (e) { alert("调用失败:"+e); });后台页面
public class DeviceStatus { public int ID {get;set;} public string Power { get; set; } public string Mode { get; set; } public string Fan { get; set; } public int TempSet { get; set; } public string UpdateTime { get; set; } } public List<DeviceStatus> GetDeviceStatus() { var devi = new List<DeviceStatus> { new DeviceStatus{ID=1,Power="开",Mode="制冷",Fan="低",TempSet=10,UpdateTime="2019-08-01 17:00:00"}, new DeviceStatus{ID=2,Power="关",Mode="制热",Fan="低",TempSet=20,UpdateTime="2019-08-02 17:00:00"}, new DeviceStatus{ID=3,Power="开",Mode="除湿",Fan="高",TempSet=30,UpdateTime="2019-08-03 17:00:00"}, new DeviceStatus{ID=4,Power="关",Mode="制热",Fan="中",TempSet=40,UpdateTime="2019-08-04 17:00:00"}, new DeviceStatus{ID=4,Power="关",Mode="制热",Fan="高",TempSet=50,UpdateTime="2019-08-05 17:00:00"}, }; var temp = (from u in devi select u).ToList(); return temp; } [HttpGet] public IEnumerable<DeviceStatus> GetOneParameter([FromUri] int ID) { var devi = GetDeviceStatus(); var temp = (from u in devi where u.ID==ID select u).ToList(); return temp; }显示结果
前台页面请求
$.ajax({ url: "../api/Home/GetManyParameter", type: "Get", datatype: "json", contentType: "application/json", data: { ID: 1, Power: "开", Mode: "制冷", Fan: "高", TempSet: 26 } }).done(function () {}).fail(function (e) {});后台页面程序
public class DeviceStatus { public int ID {get;set;} public string Power { get; set; } public string Mode { get; set; } public string Fan { get; set; } public int TempSet { get; set; } public string UpdateTime { get; set; } } public List<DeviceStatus> GetDeviceStatus() { var devi = new List<DeviceStatus> { new DeviceStatus{ID=1,Power="开",Mode="制冷",Fan="低",TempSet=10,UpdateTime="2019-08-01 17:00:00"}, new DeviceStatus{ID=2,Power="关",Mode="制热",Fan="低",TempSet=20,UpdateTime="2019-08-02 17:00:00"}, new DeviceStatus{ID=3,Power="开",Mode="除湿",Fan="高",TempSet=30,UpdateTime="2019-08-03 17:00:00"}, new DeviceStatus{ID=4,Power="关",Mode="制热",Fan="中",TempSet=40,UpdateTime="2019-08-04 17:00:00"}, new DeviceStatus{ID=4,Power="关",Mode="制热",Fan="高",TempSet=50,UpdateTime="2019-08-05 17:00:00"}, }; var temp = (from u in devi select u).ToList(); return temp; } [HttpGet] public IEnumerable<string> GetManyParameter([FromUri] int ID, string Power, string Mode, string Fan, int TempSet) { return new string[] { "编号:"+ID.ToString(), "开机状态:"+Power, "工作模式:"+Mode, "风量:"+Fan, "温度:"+TempSet.ToString() }; }显示结果
前台页面
$.ajax({ url: "../api/Home/GetManyParameterModel", type: "Get", datatype: "json", contentType: "application/json", data: { ID: 2, Power: "关", Mode: "制热", Fan: "中", TempSet: 35 } }).done(function () {}).fail(function (e) {});后台页面
public class DeviceStatus { public int ID {get;set;} public string Power { get; set; } public string Mode { get; set; } public string Fan { get; set; } public int TempSet { get; set; } public string UpdateTime { get; set; } } public List<DeviceStatus> GetDeviceStatus() { var devi = new List<DeviceStatus> { new DeviceStatus{ID=1,Power="开",Mode="制冷",Fan="低",TempSet=10,UpdateTime="2019-08-01 17:00:00"}, new DeviceStatus{ID=2,Power="关",Mode="制热",Fan="低",TempSet=20,UpdateTime="2019-08-02 17:00:00"}, new DeviceStatus{ID=3,Power="开",Mode="除湿",Fan="高",TempSet=30,UpdateTime="2019-08-03 17:00:00"}, new DeviceStatus{ID=4,Power="关",Mode="制热",Fan="中",TempSet=40,UpdateTime="2019-08-04 17:00:00"}, new DeviceStatus{ID=4,Power="关",Mode="制热",Fan="高",TempSet=50,UpdateTime="2019-08-05 17:00:00"}, }; var temp = (from u in devi select u).ToList(); return temp; } [HttpGet] public IEnumerable<string> GetManyParameterModel([FromUri] DeviceStatus devi) { return new string[] { "编号:" + devi.ID.ToString(), "开机状态:" + devi.Power, "工作模式:" + devi.Mode, "风量:" + devi.Fan, "温度:" + devi.TempSet.ToString() }; }显示结果
前台页面
$.ajax({ url: "../api/Home/PostNoKeyValueParameter", type: "Post", data: { "": "1" } }).done(function () {}).fail(function (e) {}); 注意:键值对请求的时候需要把 datatype: "json"和contentType: "application/json"注释掉，否则后台接收不到数据库。后台页面
[HttpPost] public string PostNoKeyValueParameter([FromBody] int ID) { return "接收编号是：" + ID; }显示结果
前台页面请求
$.ajax({ url: "../api/Home/PostDynamicValueParameter", type: "Post", data: { "": "2" } }).done(function () {}).fail(function (e) {});后台页面
[HttpPost] public string PostDynamicValueParameter([FromBody] dynamic ID) { return "接收编号是：" + ID; }显示结果
前台页面
var devi = { ID: 2, Power: "关", Mode: "制热", Fan: "中", TempSet: 35 }; $.ajax({ url: "../api/Home/PostJObjectValueParameter", type: "Post", dataType: "json", contentType: "application/json", data: JSON.stringify(devi) }).done(function (msg) { }).fail(function (e) { });后台页面
[HttpPost] public string PostJObjectValueParameter([FromBody] JObject data) { return "接收编号是：" + data["ID"]+ "开机状态:" + data["Power"] + "工作模式:" + data["Mode"]; }显示结果
前台页面
var devi = { ID: 3, Power: "开", Mode: "制冷", Fan: "高", TempSet: 40 }; $.ajax({ url: "../api/Home/PostModelValueParameter", type: "Post", dataType: "json", contentType: "application/json", data: JSON.stringify(devi) }).done(function (msg) { }).fail(function (e) { });后台页面
[HttpPost] public string PostModelValueParameter([FromBody] DeviceStatus data) { return "接收编号是：" + data.ID + ";开机状态:" + data.Power + ";工作模式:" + data.Mode + ";风量:" + data.Fan + "；温度:" + data.TempSet.ToString(); }显示结果
文章出处：原文
转载于:https://www.cnblogs.com/ZengJiaLin/p/11283070.html
