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README
Apache-2.0

WebOffice 开放平台 Java SDK

使用

在 pom.xml 中添加依赖:

<dependency>
  <groupId>cn.wps.solution</groupId>
  <artifactId>weboffice-provider-v3</artifactId>
  <version>0.0.1</version>
  <scope>system</scope>
  <systemPath>${project.basedir}/lib/weboffice-provider-v3-0.0.1.jar</systemPath>
</dependency>

致歉

WebOffice 的 SDK 项目目前还没有注册到 Maven Central。只能暂时通过将其添加到自建的 Maven 仓库中,或者像示例中这样,直接使用打包后的 jar 文件。

在项目中配置 Spring 发现依赖的项目下的 Bean,例如:

@SpringBootApplication(scanBasePackages = {"cn.wps.solution.weboffice.provider.v3", "your.project.class.path"})
public class Application implements ApplicationRunner { ... }

依赖

  • JDK 8+
  • Spring Framework 4.0+

主要结构及说明

├── java
│   └── cn
│       └── wps
│           └── solution
│               └── weboffice
│                   └── provider
│                       └── v3
│                           ├── controller # 接口层
│                           │   ├── ExtendCapacityController.java
│                           │   ├── FileStorageController.java
│                           │   ├── PreviewController.java
│                           │   ├── ProviderBaseController.java
│                           │   ├── ProviderJsonApi.java
│                           │   └── UserController.java
│                           ├── exception # 异常定义
│                           │   ├── CustomError.java
│                           │   ├── FileNameConflict.java
│                           │   ├── FileNotExist.java
│                           │   ├── FileUploadNotComplete.java
│                           │   ├── FileVersionNotExist.java
│                           │   ├── InternalError.java
│                           │   ├── InvalidArgument.java
│                           │   ├── InvalidToken.java
│                           │   ├── NotImplementException.java
│                           │   ├── PermissionDenied.java
│                           │   ├── ProviderException.java
│                           │   ├── StorageNoSpace.java
│                           │   └── UserNotExist.java
│                           ├── model # 值对象,包括请求参数、返回值等
│                           │   ├── DigestType.java
│                           │   ├── DownloadInfo.java
│                           │   ├── FileInfo.java
│                           │   ├── FileRenameRequest.java
│                           │   ├── FileUploadMultiPhase.java
│                           │   ├── FileUploadSinglePhase.java
│                           │   ├── LocalDateTimeDeserializer.java
│                           │   ├── LocalDateTimeSerializer.java
│                           │   ├── ProviderRequestAttribute.java
│                           │   ├── ProviderResponseEntity.java
│                           │   ├── UserInfo.java
│                           │   ├── UserPermission.java
│                           │   └── Watermark.java
│                           └── service # 需要接入方实现的接口
│                               ├── ExtendCapacityService.java # 扩展能力接口,包括历史版本、重命名等功能
│                               ├── MultiPhaseFileStorageService.java # 文档三阶段保存接口,非必须,且与 SinglePhaseFileStorageService 互斥,实现一个即可 
│                               ├── PreviewService.java # 预览服务接口,必须实现,包括获取文档信息、下载地址、当前用户权限接口
│                               ├── SinglePhaseFileStorageService.java # 文档保存接口,非必须,且与 MultiPhaseFileStorageService 互斥,实现一个即可
│                               └── UserService.java # 获取用户信息,非必须

文档预览接口 (必须)

如果仅使用开放平台提供的文档预览服务,可以只实现 PreviewService 接口,该接口是必须实现的,示例代码如下:

@Service
public class PreviewServiceImpl implements PreviewService {
    @Override
    public FileInfo fetchFileInfo(String fileId) {
        return fetchFile(fileId).toFileInfo();
    }

    @Override
    public DownloadInfo fetchDownloadInfo(String fileId) {
        return fetchFileDownloadInfo(fileId);
    }

    @Override
    public UserPermission fetchUserPermission(String fileId) {
        return fetchFileUserPermission(fileId);
    }
}

文档保存接口 (可选)

如果要使用开发平台提供的文档编辑能力,需要近一步实现文档保存接口,MultiPhaseFileStorageServiceSinglePhaseFileStorageService 这两个接口只需要实现一个即可,同时在开放平台配置您实现的是哪个接口

  • MultiPhaseFileStorageService 接口,其中包括如下三个步骤,该方式适用于文件元信息和文档内容是分开存储的,比如文档内容保存在某个云服务商,上传文件内容的流量直接走云服务商

    1. 准备阶段
    2. 获取上传地址
    3. 上传结果通知
  • SinglePhaseFileStorageService 接口,将三阶段上传中的参数,通过一个 Form 提交到接入方的服务端,包括文件的元信息和文档内容

MultiPhaseFileStorageService 实现示例:

@Service
public class MultiPhaseFileStorageServiceImpl implements MultiPhaseFileStorageService {
    // 准备阶段,获取校验文档内容的校验合计算方法,非必须,默认 SHA1
    @Override
    public List<DigestType> uploadPrepare(String s) {
        return Collections.singletonList(DigestType.SHA1);
    }

    // 获取上传地址,需要实现
    @Override
    public FileUploadMultiPhase.FileUploadAddress.Response uploadAddress(FileUploadMultiPhase.FileUploadAddress.Request request) {
        return fetchUploadAddress(request.getFileId());
    }

    // 通知上传结果
    @Override
    public FileInfo uploadComplete(FileUploadMultiPhase.FileUploadComplete.Request request) {
        maybeNeedLock();
        checkFileUploadComplete(request);
        return fetchFile(request.getRequest().getFileId());
    }
}

SinglePhaseFileStorageService 实现示例:

@Service
public class SinglePhaseFileStorageServiceImpl implements SinglePhaseFileStorageService {
    @Override
    @SneakyThrows
    public FileInfo uploadFile(FileUploadSinglePhase.Request request) {
        saveFileMeta(request);
        saveFileContent(request);
        return fetchFile(request.getFileId());
    }
}

用户接口 (可选)

如果要显示当前用户信息(当前参与文档协作的用户等场景),需要实现 UserService 接口,示例代码如下:

@Service
public class UserServiceImpl implements UserService {
    @Override
    public List<UserInfo> fetchUsers(List<String> userIds) {
        return fetchUserList(userIds);
    }
}

扩展能力接口 (可选)

如果想使用更多开放平台提供的能力,需要选择性的实现 ExtendCapacityService 中的接口

接口定义中有默认实现(default 实现),方便接入方选择只实现其中的一部分功能,例如:

public interface ExtendCapacityService {
    // 要使用文档重命名功能,需要实现该接口
    default void renameFile(String fileId, String name) {
        throw new NotImplementException();
    }

    // 如果要实现文档历史版本列表功能,要实现该接口
    default List<FileInfo> fileVersions(String fileId, int offset, int limit) {
        throw new NotImplementException();
    }

    // 如果要实现预览文档历史版本
    default FileInfo fileVersion(String fileId, int version) {
        throw new NotImplementException();
    }

    // 如果要实现预览文档历史版本,同上
    default DownloadInfo fileVersionDownload(String fileId, int version) {
        throw new NotImplementException();
    }

    // 如果要在文档预览/编辑的时候显示水印,需要实现该接口
    default Watermark fileWatermark(String fileId) {
        throw new NotImplementException();
    }
}

更多

关于回调接口的更多说明,请参考WebOffice开放平台-WebOffice回调配置

这里 这里有一个完整的 Demo 项目,供参考。

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WPS WebOffice Provider V3 对接用 SDK。 expand collapse
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