c# – 通过PowerShell将多个查询参数传递给WebService

发布时间：2020-12-15 23:28:14 所属栏目：百科来源：网络整理

导读：我通过Power Shell调用webservice GET方法,如下所示： $result = Invoke-WebRequest -Uri https://localhost/MyApi/Foo/blahA/blahB?three=testingfour=2015-09-18T06:45:29.5199432Z 但是,这给了我以下错误： The ampersand () character is not allowed. T

我通过Power Shell调用webservice GET方法,如下所示：

$result = Invoke-WebRequest -Uri https://localhost/MyApi/Foo/blahA/blahB?three=testing&four=2015-09-18T06:45:29.5199432Z

但是,这给了我以下错误：

The ampersand (&) character is not allowed. The & operator is reserved for future use; wrap an ampersand in double
quotation marks (“&”) to pass it as part of a string.

CategoryInfo : ParserError: (:) [],ParentContainsErrorRecordException

FullyQualifiedErrorId : AmpersandNotAllowed

如果重要的是我的WebAPI代码和路由(该方法有两个必需参数,3个可选)：

[HttpGet,ActionName("Foo")]
public string Foo(string one,string two,string three = null,DateTime? four = null,int five = null)
{
    //do stuff
    //return some string
}
...
routes.MapHttpRoute(
           name: "Foo",routeTemplate: "Foo/{one}/{two}",defaults: new { controller = "Testing",action = "Foo" }
           );

解决方法

一些事情,你应该用双引号包装你的URI：

$result = Invoke-WebRequest -Uri "https://localhost/MyApi/Foo/blahA/blahB?three=testing&four=2015-09-18T06:45:29.5199432Z"

其次,你的网址一般看起来不对,试试吧

$result = Invoke-WebRequest -Uri "https://localhost/MyApi/Foo?one=blahA&two=blahB&three=testing&four=2015-09-18T06:45:29.5199432Z"

（编辑：李大同）

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