webservice支持httpget及post方法

1.在web.config中节点system.web添加

    <webServices>
      <protocols>
        <add name="HttpGet" />
        <add name="HttpPost" />
      </protocols>
    </webServices>

2.在调用类添加特性

[System.Web.Script.Services.ScriptService]

3.在调用方法添加特性

[WebMethod,ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = false)]

我这边测试ScriptMethod特性可不加，并且暂时无法指定方法只能使用POST模式，不知哪位指导下。

调用的话，示例：http://localhost:26813/WebService/xxxx.asmx/GetTest?inputStr=1

并且在config中添加HttpGet及HttpPost方式访问后，会使全部接口都变成可以使用http方法调用，若有影响请慎用。

解决返回json字符串时多出一个{“d”:null}字符串方案：

可以参考连接去看看吧

下面纯属复制：

添加文件MyModule：

 1     public class MyModule : IHttpModule
 2     {
 3         public void Dispose()
 4         {
 5         }
 6 
 7         public void Init(HttpApplication context)
 8         {
 9             context.BeginRequest += new EventHandler(Application_BeginRequest);
10         }
11 
12         public void Application_BeginRequest(object sender, EventArgs e)
13         {
14             HttpApplication application = sender as HttpApplication;
15             string extension = Path.GetExtension(application.Request.Path);
16             //这边我进行一个筛选
17             if (application.Request.Path.IndexOf(".asmx/SendPatientDischargeInfo") > -1)
18             {
19                 application.Response.Filter = new CatchTextStream(application.Response.Filter);
20             }
21         }
22     }
23 
24     public class CatchTextStream : Stream
25     {
26         #region 数据流
27         /// <summary>
28         /// 数据流
29         /// </summary>
30         private readonly Stream output;
31         #endregion
32         #region 构造函数
33         public CatchTextStream(Stream s)
34         {
35             output = s;
36         }
37         #endregion
38         #region 重载属性及方法
39         public override bool CanRead => output.CanRead;
40 
41         public override bool CanSeek => output.CanSeek;
42 
43         public override bool CanWrite => output.CanWrite;
44 
45         public override void Flush()
46         {
47             output.Flush();
48         }
49         public override long Length => output.Length;
50 
51         public override long Position
52         {
53             get => output.Position;
54             set => output.Position = value;
55         }
56         public override int Read(byte[] buffer, int offset, int count)
57         {
58             return output.Read(buffer, offset, count);
59         }
60         public override long Seek(long offset, SeekOrigin origin)
61         {
62             return output.Seek(offset, origin);
63         }
64         public override void SetLength(long value)
65         {
66             output.SetLength(value);
67         }
68         public override void Write(byte[] buffer, int offset, int count)
69         {
70             if (HttpContext.Current != null)
71             {
72                 HttpContext context = HttpContext.Current;
73                 Encoding encoding = context.Response.ContentEncoding;
74                 string responseInfo = encoding.GetString(buffer, offset, count);
75                 responseInfo = responseInfo.Replace("{"d":null}", "");
76                 //responseInfo = responseInfo.Substring(0, responseInfo.Length - 9);
77                 buffer = encoding.GetBytes(responseInfo);
78                 output.Write(buffer, 0, buffer.Length);
79             }
80         }
81         #endregion
82     }

View Code

并在web.config中system.webServer节点下的modules节点添加：

<add name="MyModule" type="命名空间.MyModule"/>

在Write方法中替换字符串。