spire.doc操作word文档工具类（自用）

如果有相关问题，可以一起研究下

引入依赖

       
         
            e-iceblue
            spire.doc.free
            5.2.0
        


        
            com.e-iceblue
            e-iceblue
            https://repo.e-iceblue.cn/repository/maven-public/
        

代码片段

import com.spire.doc.Document;
import com.spire.doc.FileFormat;
import com.spire.doc.documents.DocumentObjectType;
import com.spire.doc.fields.DocPicture;
import com.spire.doc.interfaces.ICompositeObject;
import com.spire.doc.interfaces.IDocumentObject;

import javax.imageio.ImageIO;
import java.awt.image.RenderedImage;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;

/**
 * @Author: Climbing-pit
 * @Date: 2022/4/15 21:25
 * @Description: Doc工具类
 */
public class DocUtil {

    /**
     * 本地Doc文件提取Txt
     * @param filePath  文件路径
     * @param savePath  提取文件保存路径
     * @param tempFileName 文件名
     * @throws IOException
     */
    public static void extractedText(String filePath, String savePath, long tempFileName) throws IOException {
        //加载Word文档
        Document doc = new Document();
        doc.loadFromFile(filePath);
        //获取文档中的文本保存为String
        String text=doc.getText();

        //将String写入Txt文件
        writeStringToTxt(text,savePath+tempFileName+SystemConstant.DOC_TXT_SUFFIX);
    }

    /**
     * 本地Doc文件转Html
     * @param filePath  文件路径
     * @param savePath  提取文件保存路径
     * @param tempFileName 文件名
     * @throws IOException
     */
    public static void toHtml(String filePath, String savePath, long tempFileName) throws IOException {
        //加载Word文档
        Document doc = new Document();
        doc.loadFromFile(filePath);

        //保存为HTML格式
        doc.saveToFile(savePath+tempFileName+ SystemConstant.DOC_HTML_SUFFIX,FileFormat.Html);

        extractImages(filePath, savePath);


        doc.dispose();
    }


    public static void writeStringToTxt(String content, String txtFileName) throws IOException {

        FileWriter fWriter= new FileWriter(txtFileName,true);
        try {
            fWriter.write(content);
        }catch(IOException ex){
            ex.printStackTrace();
        }finally{
            try{
                fWriter.flush();
                fWriter.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }
    /**
     * 本地Doc文件提取图片
     * @param filePath  文件路径
     * @param savePath  提取文件保存路径
     * @throws IOException
     */
    public static void extractImages(String filePath, String savePath) throws IOException {
        //加载Word文档
        Document document = new Document();
        document.loadFromFile(filePath);

        //创建Queue对象
        Queue nodes = new LinkedList();
        nodes.add(document);

        //创建List对象
        List images = new ArrayList();

        //遍历文档中的子对象
        while (nodes.size() > 0) {
            ICompositeObject node = (ICompositeObject) nodes.poll();
            for (int i = 0; i < node.getChildObjects().getCount(); i++) {
                IDocumentObject child = node.getChildObjects().get(i);
                if (child instanceof ICompositeObject) {
                    nodes.add(child);

                    //获取图片并添加到List
                    if (child.getDocumentObjectType() == DocumentObjectType.Picture) {
                        DocPicture picture = (DocPicture) child;
                        images.add(picture.getImage());
                    }
                }
            }
        }

        Integer size = images.size();
        //将图片保存为PNG格式文件
        for (int i = 0; i < size; i++) {
            File file = new File(String.format(savePath+"图片-%d.png", i));
            ImageIO.write((RenderedImage) images.get(i), "PNG", file);
        }

    }

    public static void main(String[] args) {

        long l = System.currentTimeMillis();
        String filePath = "D:\\files\\practice\\明日提升练习.docx";



        //创建保存路径
        String parentFilePath = filePath.substring(0, filePath.lastIndexOf(File.separatorChar)+1);
        String savePath = parentFilePath+SystemConstant.TEST_PAPER_SAVE_PATH+l+File.separator;
        File parent = new File(savePath);
        parent.mkdirs();

        try {
            DocUtil.extractedText(filePath, savePath, l);
            DocUtil.toHtml(filePath, savePath, l);
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}


@Component
public class SystemConstant {
    public static final String DOC_HTML_SUFFIX= ".html";
    public static final String DOC_TXT_SUFFIX= "_ExtractedText.txt";
    public static final String TEST_PAPER_SAVE_PATH= "testPaper"+ File.separator;
    public static final String DOC_SAVE_PATH= "practice"+ File.separator;

}

 其他接口请看官网：帮助文档 ｜ 全面丰富的在线文档，助您快速了解如何使用产品

相关问题：

1、创建word只支持500行问题

用free spire.Doc for Java这个是免费版，有一定限制， 导出的时候可生成的段落不能超过固定的数量，超过数量之后会报错，错误信息如下：

com.spire.doc.packages.sprcdz: Spire.Doc free version is limited to 500 paragraphs. This limitation is enforced during reading or writing files.
Upgrade to Commercial Edition of Spire.Doc 

	at com.spire.doc.collections.DocumentObjectCollection.insert(Unknown Source)
	at com.spire.doc.packages.sprfww.spr︻∯—(Unknown Source)
	at com.spire.doc.packages.sprwcx.spr┰℠(Unknown Source)
	at com.spire.doc.fields.TextRange.spr┐——(Unknown Source)
	at com.spire.doc.DocumentObject.spr⌾——(Unknown Source)
	at com.spire.doc.DocumentObject.spr┰——(Unknown Source)
	at com.spire.doc.documents.Paragraph.spr┐——(Unknown Source)
	at com.spire.doc.DocumentObject.spr⌾——(Unknown Source)
	at com.spire.doc.DocumentObject.spr┰——(Unknown Source)
	at com.spire.doc.Body.spr┐——(Unknown Source)
	at com.spire.doc.packages.sprwcx.spr┄∯—(Unknown Source)
	at com.spire.doc.packages.sprajx.spr▄۩—(Unknown Source)
	at com.spire.doc.packages.sprajx.spr╽∮—(Unknown Source)
	at com.spire.doc.packages.sprwcx.spr∫┃(Unknown Source)
	at com.spire.doc.packages.spreyw.spr▄۩—(Unknown Source)
	at com.spire.doc.packages.spreyw.spr◐…(Unknown Source)
	at com.spire.doc.packages.spreyw.spr╻∮—(Unknown Source)
	at com.spire.doc.packages.spreyw.spr⌨∯—(Unknown Source)
	at com.spire.doc.Document.spr╼┈—(Unknown Source)
	at com.spire.doc.Document.saveToFile(Unknown Source)
	at com.cloud.common.util.DocUtil.writeStringToDoc(DocUtil.java:106)
	at com.cloud.spider.service.impl.BiqvgeServiceImplTest.spidedrChapter(BiqvgeServiceImplTest.java:138)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:675)
	at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:125)
	at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:132)
	at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:124)
	at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:74)
	at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)
	at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:104)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:62)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:43)
	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:35)
	at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)
	at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:202)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:198)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:135)
	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:69)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:135)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:229)
	at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:197)
	at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:211)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:191)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128)
	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:69)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)

目前我自己的解决方式是，分为多次写入，测试用例通过！