Request简单总结

Request简单使用:

说起Request,在项目中基本都必须有用到,这里记录一下我了解到的关于Request的内容:

直接代码:

非常基本的当然有Reqeust.Form和Request.QueryString,两者的区别这里不多说.

1 String name=Request.Form["Name"];//post请求或者表单上传
2
3 String id=Request.QueryString["ID"];//get请求
4
5 String value=Request["Value"];//拿到所有过来的参数

其实QueryString也可以当成一个数组

int Count = System.Web.HttpContext.Current.Request.QueryString.Count;//Count属性可以得到传递过来的参数个数

//通过Keys属性得到"键值对"中的键值
for (int i = 0; i < Count; i++)
{
    if(System.Web.HttpContext.Current.Request.QueryString.Keys[i].ToLower().Equals("page"))
    {
       String value=System.Web.HttpContext.Current.Request.QueryString[i];
    }
}

清除QueryString:

 1         /// <summary>
 2         /// 清除Request.QueryString
 3         /// </summary>
 4         /// <param name="name"></param>
 5         public  void RemoveQueryString(string name)
 6         {
 7             enableQueryStringWriting();
 8             Request.QueryString.Remove(name);
 9         }
10
11         private void enableQueryStringWriting()
12         {
13             var qs = Request.QueryString;
14
15             var queryString = (NameValueCollection)Request.GetType().GetField(
16                 "_queryString",
17                 BindingFlags.NonPublic | BindingFlags.Instance
18             ).GetValue(Request);
19
20             PropertyInfo readOnlyInfo = queryString.GetType().GetProperty(
21                 "IsReadOnly",
22                 BindingFlags.NonPublic | BindingFlags.Instance
23             );
24
25             readOnlyInfo.SetValue(queryString, false, null);
26         } 

最后提一下,上述是通过C#代码来操作Request对象,正常情况下,使用JS来操作也是比较多的,代码如下:

 1 //获取QueryString的数组
 2
 3 function getQueryString(){
 4
 5      var result = location.search.match(new RegExp("[\?\&][^\?\&]+=[^\?\&]+","g"));
 6
 7      if(result == null){
 8
 9          return "";
10
11      }
12
13      for(var i = 0; i < result.length; i++){
14
15          result[i] = result[i].substring(1);
16
17      }
18
19      return result;
20
21 }
22 //根据QueryString参数名称获取值
23
24 function getQueryStringByName(name){
25
26      var result = location.search.match(new RegExp("[\?\&]" + name+ "=([^\&]+)","i"));
27
28      if(result == null || result.length < 1){
29
30          return "";
31
32      }
33
34      return result[1];
35
36 }
37 //根据QueryString参数索引获取值
38
39 function getQueryStringByIndex(index){
40
41      if(index == null){
42
43          return "";
44
45      }
46
47      var queryStringList = getQueryString();
48
49      if (index >= queryStringList.length){
50
51          return "";
52
53      }
54
55      var result = queryStringList[index];
56
57      var startIndex = result.indexOf("=") + 1;
58
59      result = result.substring(startIndex);
60
61      return result;
62
63 }
64
65     

END!