Java 在PDF中绘制形状（基于Spire.Cloud.SDK for Java）

朱雀 2020-10-30 16:39 710阅读 0赞

Spire.Cloud.SDK for Java提供了pdfPathApi接口可用于在PDF文档中绘制形状（或图形），如绘制线条形状drawLine()、绘制矩形形状drawRectanglef()，下面将介绍如何通过Java示例和步骤来实现：

**一、导入jar文件。**（有2种方式）

**创建Maven项目程序，通过[maven][maven]仓库下载导入。**以IDEA为例，新建Maven项目，在pom.xml文件中配置maven仓库路径，并指定spire.cloud.sdk的依赖，如下：

<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> com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.1</version>
            </dependency>
    
            <dependency>
                <groupId> com.squareup.okhttp</groupId>
                <artifactId>logging-interceptor</artifactId>
                <version>2.7.5</version>
            </dependency>
    
            <dependency>
                <groupId> com.squareup.okhttp </groupId>
                <artifactId>okhttp</artifactId>
                <version>2.7.5</version>
            </dependency>
    
            <dependency>
                <groupId> com.squareup.okio </groupId>
                <artifactId>okio</artifactId>
                <version>1.6.0</version>
            </dependency>
    
            <dependency>
                <groupId> io.gsonfire</groupId>
                <artifactId>gson-fire</artifactId>
                <version>1.8.0</version>
            </dependency>
    
            <dependency>
                <groupId>io.swagger</groupId>
                <artifactId>swagger-annotations</artifactId>
                <version>1.5.18</version>
            </dependency>
    
            <dependency>
                <groupId> org.threeten </groupId>
                <artifactId>threetenbp</artifactId>
                <version>1.3.5</version>
            </dependency>
    </dependencies>

完成配置后，点击“Import Changes” 即可导入所有需要的jar文件。**如果使用的是Eclipse，可参考**[**这里**][Link 1]**的导入方法。**

导入结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70][]

**二、登录冰蓝云账号，创建文件夹，上传文档**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70 1][]

**三、创建应用程序，获取App ID及App Key**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70 2][]

**四、Java代码示例**

### 【示例1】绘制线条形状 ###

import spire.cloud.pdf.sdk.ApiException;
    import spire.cloud.pdf.sdk.Configuration;
    import spire.cloud.pdf.sdk.api.PdfPathApi;
    
    public class DrawLine {
        //配置账号信息
        static String appId = "App ID";
        static String appKey = "App Key";
        static String baseUrl= "https://api.e-iceblue.cn";
        static Configuration configuration = new Configuration(appId, appKey, baseUrl);
        static PdfPathApi pdfPathApi = new PdfPathApi(configuration);
    
        public static void main(String[] args) throws ApiException {
            String name = "samplefile.pdf";//用于测试的PDF源文档
            String outPath = "output/DrawLine.pdf";//结果文档路径（保存在冰蓝云端output文件夹下）
            int pageNumber = 1;//指定需要绘制线段的PDF页面
            float firstPointfX = 100;//指定线段起始点坐标
            float firstPointfY = 150;
            float secondPointfX = 400;
            float secondPointfY = 150;
            String folder = "input";//源文档输在文件夹
            String storage = null;//冰蓝云提供的2G免费云存储空间
            String password = null;//源文档密码（无密码设置为null）
    
            //调用方法绘制线条
            pdfPathApi.drawLine(name, outPath, pageNumber, firstPointfX, firstPointfY, secondPointfX, secondPointfY, folder, storage, password);
        }
    }

线条绘制效果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70 3][]

【示例2】绘制矩形形状

import spire.cloud.pdf.sdk.ApiException;
    import spire.cloud.pdf.sdk.Configuration;
    import spire.cloud.pdf.sdk.api.PdfPathApi;
    import spire.cloud.pdf.sdk.model.RectangleF;
    
    public class DrawRec {
        //配置账号信息
        static String appId = "App ID";
        static String appKey = "App Key";
        static String baseUrl= "https://api.e-iceblue.cn";
        static Configuration configuration = new Configuration(appId, appKey, baseUrl);
        static PdfPathApi pdfPathApi = new PdfPathApi(configuration);
    
        public static void main(String[] args) throws ApiException {
            String name = "samplefile1.pdf";//加载需要添加形状的PDF源文档
            String outPath = "output/DrawRectanglef.pdf";//指定结果文档路径（保存在冰蓝云端output文件夹下）
            int pageNumber = 1;//指定需要添加形状的PDF页面
    
            RectangleF rect = new RectangleF();//创建RectangleF类的对象
            rect.setX(100f);//指定形状坐标
            rect.setY(100f);
            rect.setWidth(350f);//指定形状宽度、高度
            rect.setHeight(60f);
    
            String folder = "input";//源文档所在文件夹
            String storage = null;//冰蓝云提供的2G免费存储空间
            String password = null;//源文档密码（无密码设置为null)
    
            //调用方法绘制矩形
            pdfPathApi.drawRectanglef(name, outPath, pageNumber, rect, folder, storage, password);
        }
    }

矩形绘制效果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0VpY2VibHVl_size_16_color_FFFFFF_t_70 4][]

[maven]: http://repo.e-iceblue.cn/#browse/browse:maven-public
[Link 1]: https://cloud.e-iceblue.cn/index.php/tutorials/cloud/webapi/java/maven-spire-cloud-web-api
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