Spire.Cloud.Word API给开发者提供了BackgroundApi类用于设置或删除Word文档背景。本文将介绍如何使用Spire.Cloud.Word API给Word文档设置背景，包括背景颜色和背景图片。

详细步骤如下：

1、首先，请在 cloud.e-iceblue.cn 网站上注册一个账户并登录，然后点击导航栏“我的应用” ，创建一个应用，获得App ID和App Key。

2、点击导航栏“文档管理”，将Word文档和背景图片上传至“我的文档”。

3. 创建Maven应用程序，在pom.xml文件中添加以下Spire.Cloud.Word的Maven依赖。详细步骤参考文章 通过 Maven 仓库安装 Spire.Cloud Web API。

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>cloud</name>
        <url>http://repo.e-iceblue.cn/repository/maven-public/</url>
    </repository>
</repositories>

<dependencies>

    <dependency>
            <groupId> cloud </groupId>
            <artifactId>spire.cloud.sdk</artifactId>
            <version>3.5.0</version>
        </dependency>

    <dependency>
        <groupId>io.swagger</groupId>
        <artifactId>swagger-annotations</artifactId>
        <version>1.5.18</version>
    </dependency>

    <dependency>
        <groupId>com.squareup.okhttp</groupId>
        <artifactId>okhttp</artifactId>
        <version>2.7.5</version>
    </dependency>

    <dependency>
        <groupId>com.squareup.okhttp</groupId>
        <artifactId>logging-interceptor</artifactId>
        <version>2.7.5</version>
    </dependency>

    <dependency>
        <groupId> com.squareup.okio </groupId>
        <artifactId>okio</artifactId>
        <version>1.6.0</version>
    </dependency>

    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.8.1</version>
    </dependency>

    <dependency>
        <groupId>io.gsonfire</groupId>
        <artifactId>gson-fire</artifactId>
        <version>1.8.0</version>
    </dependency>

    <dependency>
        <groupId>org.threeten</groupId>
        <artifactId>threetenbp</artifactId>
        <version>1.3.5</version>
    </dependency>

</dependencies>

4. 新建Java class，调用Spire.Cloud.Word API给Word文档设置背景颜色和背景图片。

设置背景颜色示例代码

import spire.cloud.word.sdk.client.ApiException;
import spire.cloud.word.sdk.client.Configuration;
import spire.cloud.word.sdk.client.api.BackgroundApi;
import spire.cloud.word.sdk.client.model.Color;

public class BackgroundColor {
    private static String appId = "APP ID";
    private static String appKey = "APP Key";

    public static void main(String[] args) throws ApiException {
        //配置App ID和App Key
        Configuration wordConfiguration = new Configuration(appId, appKey);
        //创建BackgroundApi实例
        BackgroundApi backgroundApi = new BackgroundApi(wordConfiguration);

        //原文档
        String name = "template.docx";
        //背景颜色
        Color color = new Color(17, 181, 128);
        //文档密码
        String password = null;
        //存放原文档的文件夹，没有则为null
        String folder = null;
        //使用冰蓝云配置的2G空间存贮文档，可设置为null
        String storage = null;

        //给文档设置背景颜色并保存到指定路径
        String destFilePath = "output/setBackgroundColor.docx";
        backgroundApi.setBackgroundColor(name, color, destFilePath, folder, storage, password);
    }
}

设置背景图片示例代码

import spire.cloud.word.sdk.client.ApiException;
import spire.cloud.word.sdk.client.Configuration;
import spire.cloud.word.sdk.client.api.BackgroundApi;

public class BackgroundImage {
    private static String appId = "APP ID";
    private static String appKey = "APP Key";

    public static void main(String[] args) throws ApiException {
        //配置App ID和App Key
        Configuration wordConfiguration = new Configuration(appId, appKey);
        //创建BackgroundApi实例
        BackgroundApi backgroundApi = new BackgroundApi(wordConfiguration);      

        //原文档
        String name = "template.docx";
        //背景图片
        String imagePath = "background.png";
        //文档密码
        String password = null;
        //存放原文档的文件夹，没有则为null
        String folder = null;
        //使用冰蓝云配置的2G空间存贮文档，可设置为null
        String storage = null;

        //给文档设置背景图片并保存到指定路径
        String destFilePath = "output/setBackgroundImage.docx";
        backgroundApi.setBackgroundImage(name, imagePath, destFilePath, folder, storage, password);
    }
}