RoR:Ruby On Rails 的 Web Service

1.c:\rails flexstore
2.修改数据库配置文件 database.yml
3.c:\flexstore\ruby script/generate model product
4.c:\flexstore\ruby script/generate web_service ProductWervice getall find
5.修改如下两个 rb文件

product_service_api.rb
class ProductServiceApi < ActionWebService::API::Base
  api_method :getall,:returns => [[Product]]
  api_method :find, 
  :expects => [{:from=>:int},{:to=>:int}], 
  :returns => [[Product]]
end

product_service_controller.rb
class ProductServiceController < ApplicationController
  wsdl_service_name 'ProductService'
  web_service_scaffold :invoke #此处可以像.NET一下直接在浏览器测试web service
  def getall
    return Product.find_all
  end

  def find
    return Product.find(:all,:conditions =>["price >= :from and price <= :to",params])    
   end
end

6. C:\flexstore\ruby script/server

7. http://localhost:3000/Product_Service/service.wsdl

wsdl
<definitions name="ProductService" targetNamespace="urn:ActionWebService">
−
    <types>
−
    <xsd:schema targetNamespace="urn:ActionWebService">
−
    <xsd:complexType name="ProductArray">
−
    <xsd:complexContent>
−
    <xsd:restriction base="soapenc:Array">
<xsd:attribute wsdl:arrayType="typens:Product[]" ref="soapenc:arrayType"/>
</xsd:restriction>
</xsd:complexContent>
</xsd:complexType>
−
    <xsd:complexType name="Product">
−
    <xsd:all>
<xsd:element name="id" type="xsd:int"/>
<xsd:element name="name" type="xsd:string"/>
<xsd:element name="description" type="xsd:string"/>
<xsd:element name="price" type="xsd:double"/>
<xsd:element name="image" type="xsd:string"/>
<xsd:element name="triband" type="xsd:int"/>
<xsd:element name="camera" type="xsd:int"/>
<xsd:element name="video" type="xsd:int"/>
</xsd:all>
</xsd:complexType>
</xsd:schema>
</types>
<message name="Getall">
  </message>
−
    <message name="GetallResponse">
<part name="return" type="typens:ProductArray"/>
</message>
−
    <message name="Find">
<part name="from" type="xsd:int"/>
<part name="to" type="xsd:int"/>
</message>
−
    <message name="FindResponse">
<part name="return" type="typens:ProductArray"/>
</message>
−
    <portType name="ProductServiceProductServicePort">
−
    <operation name="Getall">
<input message="typens:Getall"/>
<output message="typens:GetallResponse"/>
</operation>
−
    <operation name="Find">
<input message="typens:Find"/>
<output message="typens:FindResponse"/>
</operation>
</portType>
−
    <binding name="ProductServiceProductServiceBinding" type="typens:ProductServiceProductServicePort">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="rpc"/>
−
    <operation name="Getall">
<soap:operation soapAction="/product_service/api/Getall"/>
−
    <input>
<soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="urn:ActionWebService" use="encoded"/>
</input>
−
    <output>
<soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="urn:ActionWebService" use="encoded"/>
</output>
</operation>
−
    <operation name="Find">
<soap:operation soapAction="/product_service/api/Find"/>
−
    <input>
<soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="urn:ActionWebService" use="encoded"/>
</input>
−
    <output>
<soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="urn:ActionWebService" use="encoded"/>
</output>
</operation>
</binding>
−
    <service name="ProductServiceService">
−
    <port name="ProductServiceProductServicePort" binding="typens:ProductServiceProductServiceBinding">
<soap:address location="http://localhost:3000/product_service/api"/>
</port>
</service>
</definitions>

8.测试 http://localhost:3000/Product_Service/invoke


9.使用自己定义的结构

#model
class ReportStruct < ActionWebService::Struct
  member :id, :int
  member :CreateDate,:string
  member :UpdateDate,:string
  member :user_id,:int
  member :Content,:string
  member :username,:string
end

#Controller
def reports_find(userid)
    if userid != 0
      reports = Report.find(:all,:conditions => ["user_id= :userid",params],:order => "CreateDate desc")
    else
      reports = Report.find(:all,:order => "CreateDate desc")
    end
    results = []
    reports.each do |rec|
       results << ReportStruct.new(:id => rec.id, :CreateDate => rec.CreateDate,
           :UpdateDate => rec.UpdateDate, :user_id => rec.user_id,
           :Content => rec.Content,:username => rec.user.DisplayName)
    end
    return results  
  end