在Google RESTFul API中，Google Blogger API（Google博客API）应该和我们的生活离得最近；因为几乎很多人每天都在看博客，都在写博客，都听说过博客。在前面的Google的应用系统进行集成(5）和Google的应用系统进行集成(6)的系列文章中，我们提到了如何把Google Calendar和Google Tasks的JSON Schema转换成XML的XSD的Schema；从博客的访问量来看，还是有很多志同道合的朋友们对这个比较感兴趣，因此，这个章节，我继续给大家奉献和分享一下如何把Google Blogger的JSON Schema转换成XML的Schema(XSD)。首先我们先列出Google Blogger的JSON的Schema（https://www.googleapis.com/discovery/v1/apis/blogger/v3/rest）

那么，如何把Google Blogger的JSON Schema转换成XML的XSD Schema？XML的Schema将会是什么样子的呢？请参考下面转换实现。

<?xml version="1.0" encoding="UTF-8"?><xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"	 elementFormDefault="qualified"	 attributeFormDefault="unqualified">	<xs:complexType name="Blog">		<xs:sequence>			<xs:element name="customMetaData" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="description" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="locale" type="locale" form="unqualified" minOccurs="0"/>			<xs:element name="name" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="pages" type="pages" form="unqualified" minOccurs="0"/>			<xs:element name="posts" type="posts" form="unqualified" minOccurs="0"/>			<xs:element name="published" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="updated" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="url" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="BlogList">		<xs:sequence>			<xs:element name="blogUserInfos" type="BlogUserInfo" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="items" type="Blog" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="BlogPerUserInfo">		<xs:sequence>			<xs:element name="blogId" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="hasAdminAccess" type="xs:boolean" form="unqualified" minOccurs="0"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="photosAlbumKey" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="role" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="userId" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="BlogUserInfo">		<xs:sequence>			<xs:element name="blog" type="Blog" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="blog_user_info" type="BlogPerUserInfo" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="Blogimages">		<xs:sequence>			<xs:element name="items" type="Blogitems" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="Blogitems">		<xs:sequence>			<xs:element name="url" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="Comment">		<xs:sequence>			<xs:element name="author" type="author" form="unqualified" minOccurs="0"/>			<xs:element name="blog" type="blog" form="unqualified" minOccurs="0"/>			<xs:element name="content" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="inReplyTo" type="inReplyTo" form="unqualified" minOccurs="0"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="post" type="post" form="unqualified" minOccurs="0"/>			<xs:element name="published" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="status" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="updated" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="CommentList">		<xs:sequence>			<xs:element name="items" type="Comment" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="nextPageToken" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="prevPageToken" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="Page">		<xs:sequence>			<xs:element name="author" type="author" form="unqualified" minOccurs="0"/>			<xs:element name="blog" type="blog" form="unqualified" minOccurs="0"/>			<xs:element name="content" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="published" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="status" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="title" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="updated" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="url" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="PageList">		<xs:sequence>			<xs:element name="items" type="Page" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="Pageviews">		<xs:sequence>			<xs:element name="blogId" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="counts" type="Pageviewsitems" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="Pageviewscounts">		<xs:sequence>			<xs:element name="items" type="Pageviewsitems" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="Pageviewsitems">		<xs:sequence>			<xs:element name="count" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="timeRange" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="Post">		<xs:sequence>			<xs:element name="author" type="author" form="unqualified" minOccurs="0"/>			<xs:element name="blog" type="blog" form="unqualified" minOccurs="0"/>			<xs:element name="content" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="customMetaData" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="images" type="Blogimages" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>                           <xs:element name="labels" form="unqualified" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="location" type="location" form="unqualified" minOccurs="0"/>			<xs:element name="published" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="replies" type="replies" form="unqualified" minOccurs="0"/>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="status" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="title" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="titleLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="updated" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="url" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="PostList">		<xs:sequence>			<xs:element name="items" type="Post" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="nextPageToken" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="PostPerUserInfo">		<xs:sequence>			<xs:element name="blogId" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="hasEditAccess" type="xs:boolean" form="unqualified" minOccurs="0"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="postId" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="userId" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="PostUserInfo">		<xs:sequence>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="post" type="Post" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="post_user_info" type="PostPerUserInfo" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="PostUserInfosList">		<xs:sequence>			<xs:element name="items" type="PostUserInfo" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="nextPageToken" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="User">		<xs:sequence>			<xs:element name="about" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="blogs" type="blogs" form="unqualified" minOccurs="0"/>			<xs:element name="created" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="displayName" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="kind" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="locale" type="locale" form="unqualified" minOccurs="0"/>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="url" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="author">		<xs:sequence>			<xs:element name="displayName" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="image" type="image" form="unqualified" minOccurs="0"/>			<xs:element name="url" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="blog">		<xs:sequence>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="blogs">		<xs:sequence>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="image">		<xs:sequence>			<xs:element name="url" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="inReplyTo">		<xs:sequence>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="locale">		<xs:sequence>			<xs:element name="country" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="language" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="variant" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="location">		<xs:sequence>			<xs:element name="lat" type="xs:double" form="unqualified" minOccurs="0"/>			<xs:element name="lng" type="xs:double" form="unqualified" minOccurs="0"/>			<xs:element name="name" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="span" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="pages">		<xs:sequence>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="totalItems" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="post">		<xs:sequence>			<xs:element name="id" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="posts">		<xs:sequence>			<xs:element name="items" type="Post" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="totalItems" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:complexType name="replies">		<xs:sequence>			<xs:element name="items" type="Comment" form="unqualified" minOccurs="0" maxOccurs="unbounded"/>			<xs:element name="selfLink" type="xs:string" form="unqualified" minOccurs="0"/>			<xs:element name="totalItems" type="xs:string" form="unqualified" minOccurs="0"/>		</xs:sequence>	</xs:complexType>	<xs:element name="Blog" type="Blog"/>	<xs:element name="BlogList" type="BlogList"/>	<xs:element name="BlogPerUserInfo" type="BlogPerUserInfo"/>	<xs:element name="BlogUserInfo" type="BlogUserInfo"/>	<xs:element name="Comment" type="Comment"/>	<xs:element name="CommentList" type="CommentList"/>	<xs:element name="Page" type="Page"/>	<xs:element name="PageList" type="PageList"/>	<xs:element name="Pageviews" type="Pageviews"/>	<xs:element name="Post" type="Post"/>	<xs:element name="PostList" type="PostList"/>	<xs:element name="PostPerUserInfo" type="PostPerUserInfo"/>	<xs:element name="PostUserInfo" type="PostUserInfo"/>	<xs:element name="PostUserInfosList" type="PostUserInfosList"/>	<xs:element name="User" type="User"/></xs:schema>