.net webapi 接收 xml 格式数据的三种情况
webapi 接收 xml 的三种方法
前段时间接到一个任务写一个小接口,要接收java端返回过来的短信xml数据。
刚拿到项目,我的第一想法是对方会以什么形式发送xml格式的数据给我呢,设想三种情况。
我一开始拿到手上的是一串xml格式字符串。如下
<?xml version="1.0" encoding="utf-8"?>
<returnForm>
<type>2</type>
<count>1</count>
<list>
<pushSmsForm>
<eprId>0</eprId>
<mobile>13560739262</mobile>
<msgId>30217002</msgId>
<content> <![CDATA[回复内容]]> </content>
<userId>id</userId>
<extNum>扩展号</extNum>
<recvNum/>
</pushSmsForm>
<pushSmsForm>
<eprId>0</eprId>
<mobile>13560739261</mobile>
<msgId>30217001</msgId>
<content> <![CDATA[回复内容]]> </content>
<userId>id</userId>
<extNum>扩展号</extNum>
<recvNum/>
</pushSmsForm>
</list>
</returnForm>
思路
这个xml的基本知识我就不一一介绍了,简单说一下<![CDATA[ ]]>
标志,里面的内容是没有限制的(除了< 和 >)。继续讲思路,文档中只说了是post方法,所以我想到了三种可能:
- 对方通过form表单提交了一个xml文件,我需要用文件流(filestream)读取文件,并进行转化为实体类
- 对方通过post了一个字符串过来,我接收字符串并转化为实体类。
- 对方直接在请求里添加了xml字符串(text/xml)
- 先构建两个xml反序列化的帮助类
/// <summary>
/// 反序列化
/// </summary>
/// <param name="type">类型</param>
/// <param name="xml">XML字符串</param>
/// <returns></returns>
public static object Deserialize(Type type, string xml)
{
using (StringReader sr = new StringReader(xml))
{
XmlSerializer xmldes = new XmlSerializer(type);
return xmldes.Deserialize(sr);
}
}
/// <summary>
/// 反序列化
/// </summary>
/// <param name="type"></param>
/// <param name="xml"></param>
/// <returns></returns>
public static object Deserialize(Type type, Stream stream)
{
XmlSerializer xmldes = new XmlSerializer(type);
return xmldes.Deserialize(stream);
}
- 利用visual studio自带的功能xml生成类(编辑-->选择性粘贴-->paste xml as classes)
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class returnFormPushSmsForm
{
private int eprIdField;
private string mobileField;
private string msgIdField;
private string contentField;
private string userIdField;
private string extNumField;
private string recvNumField;
/// <remarks/>
public int eprId
{
get
{
return this.eprIdField;
}
set
{
this.eprIdField = value;
}
}
/// <remarks/>
public string mobile
{
get
{
return this.mobileField;
}
set
{
this.mobileField = value;
}
}
/// <remarks/>
public string msgId
{
get
{
return this.msgIdField;
}
set
{
this.msgIdField = value;
}
}
/// <remarks/>
public string content
{
get
{
return this.contentField;
}
set
{
this.contentField = value;
}
}
/// <remarks/>
public string userId
{
get
{
return this.userIdField;
}
set
{
this.userIdField = value;
}
}
/// <remarks/>
public string extNum
{
get
{
return this.extNumField;
}
set
{
this.extNumField = value;
}
}
/// <remarks/>
public string recvNum
{
get
{
return this.recvNumField;
}
set
{
this.recvNumField = value;
}
}
}
生成类之后注意一下数据类型需要根据需求做一些修改
- 接下来就开始写第一个接口,最简单的直接接收字符串
[HttpPost, Route("get/context")]
public int getContext(context_ context)
{
bool result = false;
//短信数据
returnForm context_data =
XmlSerializeUtil.Deserialize(typeof(returnForm), context.context) as returnForm;
if (context_data != null && context_data.count > 0)
{
result = UpdateDB(context_data);
}
return result ? 100 : 500;
}
这里我定义了一个类context_,调用之前写的方法反序列化实体类,再写入数据库
- 第二个接口时接收请求中的xml(text/xml)
[HttpPost, Route("get/context")]
public int getContext(context_ context)
{
bool result = false;
//短信数据
returnForm context_data = XmlSerializeUtil.Deserialize(typeof(returnForm),
HttpContext.Current.Request.InputStream) as returnForm;
if (context_data != null && context_data.count > 0)
{
result = UpdateDB(context_data);
}
return result ? 100 : 500;
}
这里读取了请求中的内容,HttpContext.Current.Request.InputStream
- 第三种是读取文件
[HttpPost, Route("get/context")]
public int getContext(context_ context)
{
bool result = false;
HttpFileCollection files = HttpContext.Current.Request.Files;
foreach (string key in files.AllKeys)
{
HttpPostedFile file1 = files[key];
file1.InputStream.ToString();
returnForm context_data =
XmlSerializeUtil.Deserialize(typeof(returnForm), file1.InputStream) as returnForm;
if (context_data != null && context_data.count > 0)
{
result = UpdateDB(context_data);
}
}
return result ? 100 : 500;
}
遍历文件内容,获取数据