路径名导致的异常：javax.imageio.IIOException: Can‘t read input file!

最新推荐文章于 2024-04-18 15:40:33 发布
最新推荐文章于 2024-04-18 15:40:33 发布
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文章标签： 图片水印 Java imageio 不能读取本地图片 IIOException
原文链接：https://www.codeprj.com/blog/4e6fa31.html
博客探讨了在使用javax.imageio.IIOException时遇到的'Can't read input file!'问题，主要原因是路径错误。提供了详细的原因分析及解决方案，适合Java开发者参考。

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Exception in thread “main” javax.imageio.IIOException: Can’t read input file!
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public static void main(String[] args) throws TesseractException { // 识别图片的路径（修改为自己的图片路径） String path = "D:\\pdf\\Snipaste_2025-07-17_07-59-02.jpg"; // 语言库位置（修改为跟自己语言库文件夹的路径） String lagnguagePath = "D:\\maven_use\\lingxi-lhc\\lingxi-ai-extend\\lingxi-ai-comparison\\src\\main\\resources\\tessdata"; File file = new File(path); ITesseract instance = new Tesseract(); // 设置训练库的位置 instance.setDatapath(lagnguagePath); instance.setLanguage("eng"); instance.setPageSegMode(6); instance.setOcrEngineMode(1); String result = instance.doOCR(file); System.out.println(result); }C:\Java\jdk-17\bin\java.exe "-javaagent:D:\work\IntelliJ IDEA 2024.3\lib\idea_rt.jar=51929:D:\work\IntelliJ IDEA 2024.3\bin" -Dfile.encoding=UTF-8 -classpath D:\maven_use\lingxi-lhc\lingxi-ai-extend\lingxi-ai-comparison\target\classes;D:\maven_use\repository\org\springframework\boot\spring-boot-starter-web\3.4.4\spring-boot-starter-web-3.4.4.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-starter\3.4.4\spring-boot-starter-3.4.4.jar;D:\maven_use\repository\org\springframework\boot\spring-boot\3.4.4\spring-boot-3.4.4.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-autoconfigure\3.4.4\spring-boot-autoconfigure-3.4.4.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-starter-logging\3.4.4\spring-boot-starter-logging-3.4.4.jar;D:\maven_use\repository\ch\qos\logback\logback-classic\1.5.18\logback-classic-1.5.18.jar;D:\maven_use\repository\ch\qos\logback\logback-core\1.5.18\logback-core-1.5.18.jar;D:\maven_use\repository\org\apache\logging\log4j\log4j-to-slf4j\2.24.3\log4j-to-slf4j-2.24.3.jar;D:\maven_use\repository\org\apache\logging\log4j\log4j-api\2.24.3\log4j-api-2.24.3.jar;D:\maven_use\repository\org\slf4j\jul-to-slf4j\2.0.17\jul-to-slf4j-2.0.17.jar;D:\maven_use\repository\jakarta\annotation\jakarta.annotation-api\2.1.1\jakarta.annotation-api-2.1.1.jar;D:\maven_use\repository\org\springframework\spring-core\6.2.5\spring-core-6.2.5.jar;D:\maven_use\repository\org\springframework\spring-jcl\6.2.5\spring-jcl-6.2.5.jar;D:\maven_use\repository\org\yaml\snakeyaml\2.3\snakeyaml-2.3.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-starter-json\3.4.4\spring-boot-starter-json-3.4.4.jar;D:\maven_use\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.18.3\jackson-datatype-jdk8-2.18.3.jar;D:\maven_use\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.18.3\jackson-datatype-jsr310-2.18.3.jar;D:\maven_use\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.18.3\jackson-module-parameter-names-2.18.3.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-starter-tomcat\3.4.4\spring-boot-starter-tomcat-3.4.4.jar;D:\maven_use\repository\org\apache\tomcat\embed\tomcat-embed-core\10.1.39\tomcat-embed-core-10.1.39.jar;D:\maven_use\repository\org\apache\tomcat\embed\tomcat-embed-el\10.1.39\tomcat-embed-el-10.1.39.jar;D:\maven_use\repository\org\apache\tomcat\embed\tomcat-embed-websocket\10.1.39\tomcat-embed-websocket-10.1.39.jar;D:\maven_use\repository\org\springframework\spring-web\6.2.5\spring-web-6.2.5.jar;D:\maven_use\repository\org\springframework\spring-beans\6.2.5\spring-beans-6.2.5.jar;D:\maven_use\repository\io\micrometer\micrometer-observation\1.14.5\micrometer-observation-1.14.5.jar;D:\maven_use\repository\io\micrometer\micrometer-commons\1.14.5\micrometer-commons-1.14.5.jar;D:\maven_use\repository\org\springframework\spring-webmvc\6.2.5\spring-webmvc-6.2.5.jar;D:\maven_use\repository\org\springframework\spring-aop\6.2.5\spring-aop-6.2.5.jar;D:\maven_use\repository\org\springframework\spring-context\6.2.5\spring-context-6.2.5.jar;D:\maven_use\repository\org\springframework\spring-expression\6.2.5\spring-expression-6.2.5.jar;D:\maven_use\repository\org\apache\pdfbox\pdfbox\2.0.29\pdfbox-2.0.29.jar;D:\maven_use\repository\org\apache\pdfbox\fontbox\2.0.29\fontbox-2.0.29.jar;D:\maven_use\repository\commons-logging\commons-logging\1.2\commons-logging-1.2.jar;D:\maven_use\repository\org\json\json\20231013\json-20231013.jar;D:\maven_use\repository\com\hankcs\hanlp\portable-1.8.4\hanlp-portable-1.8.4.jar;D:\maven_use\lingxi-lhc\lingxi-ai-common\lingxi-ai-common-core\target\classes;D:\maven_use\repository\org\springframework\spring-context-support\6.2.5\spring-context-support-6.2.5.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-starter-validation\3.4.4\spring-boot-starter-validation-3.4.4.jar;D:\maven_use\repository\org\hibernate\validator\hibernate-validator\8.0.2.Final\hibernate-validator-8.0.2.Final.jar;D:\maven_use\repository\jakarta\validation\jakarta.validation-api\3.0.2\jakarta.validation-api-3.0.2.jar;D:\maven_use\repository\com\fasterxml\classmate\1.7.0\classmate-1.7.0.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-starter-aop\3.4.4\spring-boot-starter-aop-3.4.4.jar;D:\maven_use\repository\org\aspectj\aspectjweaver\1.9.23\aspectjweaver-1.9.23.jar;D:\maven_use\repository\org\apache\commons\commons-lang3\3.17.0\commons-lang3-3.17.0.jar;D:\maven_use\repository\jakarta\servlet\jakarta.servlet-api\6.0.0\jakarta.servlet-api-6.0.0.jar;D:\maven_use\repository\cn\hutool\hutool-core\5.8.35\hutool-core-5.8.35.jar;D:\maven_use\repository\cn\hutool\hutool-http\5.8.35\hutool-http-5.8.35.jar;D:\maven_use\repository\cn\hutool\hutool-extra\5.8.35\hutool-extra-5.8.35.jar;D:\maven_use\repository\cn\hutool\hutool-setting\5.8.35\hutool-setting-5.8.35.jar;D:\maven_use\repository\cn\hutool\hutool-log\5.8.35\hutool-log-5.8.35.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-configuration-processor\3.4.4\spring-boot-configuration-processor-3.4.4.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-properties-migrator\3.4.4\spring-boot-properties-migrator-3.4.4.jar;D:\maven_use\repository\org\springframework\boot\spring-boot-configuration-metadata\3.4.4\spring-boot-configuration-metadata-3.4.4.jar;D:\maven_use\repository\com\vaadin\external\google\android-json\0.0.20131108.vaadin1\android-json-0.0.20131108.vaadin1.jar;D:\maven_use\repository\io\github\linpeilie\mapstruct-plus-spring-boot-starter\1.4.6\mapstruct-plus-spring-boot-starter-1.4.6.jar;D:\maven_use\repository\io\github\linpeilie\mapstruct-plus\1.4.6\mapstruct-plus-1.4.6.jar;D:\maven_use\repository\org\mapstruct\mapstruct\1.5.5.Final\mapstruct-1.5.5.Final.jar;D:\maven_use\repository\io\github\linpeilie\mapstruct-plus-object-convert\1.4.6\mapstruct-plus-object-convert-1.4.6.jar;D:\maven_use\repository\org\lionsoul\ip2region\2.7.0\ip2region-2.7.0.jar;D:\maven_use\repository\net\sourceforge\tess4j\tess4j\5.8.0\tess4j-5.8.0.jar;D:\maven_use\repository\net\java\dev\jna\jna\5.13.0\jna-5.13.0.jar;D:\maven_use\repository\com\github\jai-imageio\jai-imageio-core\1.4.0\jai-imageio-core-1.4.0.jar;D:\maven_use\repository\org\apache\pdfbox\pdfbox-tools\2.0.29\pdfbox-tools-2.0.29.jar;D:\maven_use\repository\org\apache\pdfbox\pdfbox-debugger\2.0.29\pdfbox-debugger-2.0.29.jar;D:\maven_use\repository\org\apache\pdfbox\jbig2-imageio\3.0.4\jbig2-imageio-3.0.4.jar;D:\maven_use\repository\commons-io\commons-io\2.15.0\commons-io-2.15.0.jar;D:\maven_use\repository\net\sourceforge\lept4j\lept4j\1.18.1\lept4j-1.18.1.jar;D:\maven_use\repository\org\jboss\jboss-vfs\3.2.17.Final\jboss-vfs-3.2.17.Final.jar;D:\maven_use\repository\org\jboss\logging\jboss-logging\3.6.1.Final\jboss-logging-3.6.1.Final.jar;D:\maven_use\repository\org\slf4j\slf4j-api\2.0.17\slf4j-api-2.0.17.jar;D:\maven_use\repository\org\openpnp\opencv\4.5.5-1\opencv-4.5.5-1.jar;D:\maven_use\repository\com\fasterxml\jackson\core\jackson-databind\2.18.3\jackson-databind-2.18.3.jar;D:\maven_use\repository\com\fasterxml\jackson\core\jackson-annotations\2.18.3\jackson-annotations-2.18.3.jar;D:\maven_use\repository\com\fasterxml\jackson\core\jackson-core\2.18.3\jackson-core-2.18.3.jar;D:\maven_use\repository\com\fasterxml\jackson\dataformat\jackson-dataformat-xml\2.18.3\jackson-dataformat-xml-2.18.3.jar;D:\maven_use\repository\org\codehaus\woodstox\stax2-api\4.2.2\stax2-api-4.2.2.jar;D:\maven_use\repository\com\fasterxml\woodstox\woodstox-core\7.0.0\woodstox-core-7.0.0.jar;D:\maven_use\repository\jakarta\xml\bind\jakarta.xml.bind-api\4.0.0\jakarta.xml.bind-api-4.0.0.jar;D:\maven_use\repository\jakarta\activation\jakarta.activation-api\2.1.3\jakarta.activation-api-2.1.3.jar;D:\maven_use\repository\org\glassfish\jaxb\jaxb-runtime\4.0.2\jaxb-runtime-4.0.2.jar;D:\maven_use\repository\org\glassfish\jaxb\jaxb-core\4.0.5\jaxb-core-4.0.5.jar;D:\maven_use\repository\org\eclipse\angus\angus-activation\2.0.2\angus-activation-2.0.2.jar;D:\maven_use\repository\org\glassfish\jaxb\txw2\4.0.5\txw2-4.0.5.jar;D:\maven_use\repository\com\sun\istack\istack-commons-runtime\4.1.2\istack-commons-runtime-4.1.2.jar;D:\maven_use\repository\org\ehcache\ehcache\3.10.8\ehcache-3.10.8.jar;D:\maven_use\repository\javax\cache\cache-api\1.1.1\cache-api-1.1.1.jar com.luxsan.service.bb 18:42:34.862 [main] ERROR net.sourceforge.tess4j.Tesseract -- Not a JPEG file: starts with 0x89 0x50 javax.imageio.IIOException: Not a JPEG file: starts with 0x89 0x50 at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.readImageHeader(Native Method) at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.readNativeHeader(JPEGImageReader.java:739) at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.checkTablesOnly(JPEGImageReader.java:354) at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.getNumImagesOnThread(JPEGImageReader.java:434) at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.getNumImages(JPEGImageReader.java:400) at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:236) at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:210) at com.luxsan.service.bb.main(bb.java:32) Exception in thread "main" net.sourceforge.tess4j.TesseractException: javax.imageio.IIOException: Not a JPEG file: starts with 0x89 0x50 at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:261) at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:210) at com.luxsan.service.bb.main(bb.java:32) Caused by: javax.imageio.IIOException: Not a JPEG file: starts with 0x89 0x50 at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.readImageHeader(Native Method) at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.readNativeHeader(JPEGImageReader.java:739) at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.checkTablesOnly(JPEGImageReader.java:354) at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.getNumImagesOnThread(JPEGImageReader.java:434) at java.desktop/com.sun.imageio.plugins.jpeg.JPEGImageReader.getNumImages(JPEGImageReader.java:400) at net.sourceforge.tess4j.Tesseract.doOCR(Tesseract.java:236) ... 2 more报错为什么
最新发布
07-18
我们遇到了一个错误：`javax.imageio.IIOException: Not a JPEG file: starts with 0x89 0x50`。这个错误是因为程序试图读取一个JPEG文件，但文件的开头两个字节是0x89和0x50，这实际上是PNG文件的文件头（PNG文件头...
package com.luxsan.service; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.ObjectMapper; import com.hankcs.hanlp.HanLP; import com.hankcs.hanlp.seg.common.Term; import com.luxsan.common.core.utils.MessageUtils; import com.luxsan.domain.ValidationResult; import jakarta.annotation.PostConstruct; import lombok.RequiredArgsConstructor; import net.sourceforge.tess4j.Tesseract; import org.apache.pdfbox.pdmodel.PDDocument; import org.apache.pdfbox.text.PDFTextStripper; import org.springframework.stereotype.Service; import org.springframework.web.multipart.MultipartFile; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.File; import java.io.InputStream; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.StandardCopyOption; import java.util.*; @RequiredArgsConstructor @Service public class ReadFileContentService { private final ObjectMapper objectMapper = new ObjectMapper(); private Tesseract tesseract; @PostConstruct public void initOcrEngine() { tesseract = new Tesseract(); //语言包路径和支持语言 tesseract.setDatapath("D:\\maven_use\\lingxi-lhc\\lingxi-ai-extend\\lingxi-ai-comparison\\src\\main\\resources\\tessdata"); tesseract.setLanguage("eng+chi_sim"); tesseract.setPageSegMode(6); // 自动页面分割 tesseract.setOcrEngineMode(1); // LSTM引擎 } /** * 支持PDF读取文件和图片ocr */ public String extractContent(MultipartFile file) { String contentType = file.getContentType(); String fileName = file.getOriginalFilename().toLowerCase(); if (contentType == null) { return "不支持的文件类型: " + contentType; } if (fileName.endsWith(".pdf")) { return readPdfText(file); } return extractImageText(file); } /** * 读取PDF文本内容 * * @param file * @return */ public String readPdfText(MultipartFile file) { try (PDDocument doc = PDDocument.load(file.getInputStream())) { PDFTextStripper stripper = new PDFTextStripper(); // 设置行分隔符 stripper.setLineSeparator("\n"); // 设置字符间距 stripper.setSortByPosition(true); String rawText = stripper.getText(doc); System.out.println("pdf内容" + rawText); return rawText.trim(); } catch (Exception e) { return MessageUtils.message("file.read.pdf.error"); } } /** * OCR识别图片内容 */ private String extractImageText(MultipartFile file) { try (InputStream is = file.getInputStream()) { // 将输入流直接转为BufferedImage BufferedImage image = ImageIO.read(is); if (image == null) { return MessageUtils.message("Image.parsing.failed"); } // 直接对BufferedImage进行OCR String result = tesseract.doOCR(image).replaceAll("\\s+", " ").trim(); return result; } catch (Exception e) { return MessageUtils.message("file.read.picture.error"); } } // private String getFileExtension(String filename) { // if (filename == null) return ".tmp"; // int dotIndex = filename.lastIndexOf('.'); // return (dotIndex == -1) ? ".tmp" : filename.substring(dotIndex); // } /** * 解析json */ public JsonNode parseJson(String jsonContent) throws Exception { return this.objectMapper.readTree(jsonContent); } public List<ValidationResult> compareContent(String pdfText, JsonNode jsonConfig) { List<ValidationResult> results = new ArrayList<>(); String cleanPdf = pdfText.replaceAll("\\s+", ""); // 预处理PDF文本 //处理JSON结构对象/数组 JsonNode dataNode = jsonConfig.isArray() && jsonConfig.size() > 0 ? jsonConfig.get(0) : jsonConfig; // 高效遍历JSON字段 dataNode.fields().forEachRemaining(entry -> { String key = entry.getKey(); String value = entry.getValue().asText().replaceAll("\\s+", ""); if (!value.isEmpty()) { boolean found = cleanPdf.contains(value); results.add(new ValidationResult( "FIELD", key, value, found ? "Found" : "Not Found", found )); } }); return results; } public JsonNode parsePipeSeparatedDataToJson(String inputData) throws Exception { Map<String, String> dataMap = parsePipeSeparatedData(inputData); return objectMapper.valueToTree(dataMap); } //解析分隔数据 public Map<String, String> parsePipeSeparatedData(String fileCONTENT) { //处理转义的换行符 fileCONTENT = fileCONTENT.replace("\\n", "\n").replaceAll("\\|+\"$", "").trim();; Map<String, String> dataMap = new LinkedHashMap<>(); String[] lines = fileCONTENT.split("\n"); if (lines.length >= 2) { String[] headers = lines[0].split("\\|"); String[] values = lines[1].split("\\|"); int minLength = Math.min(headers.length, values.length); for (int i = 0; i < minLength; i++) { dataMap.put(headers[i], values[i]); } } return dataMap; } //判断是不是json public boolean isPipeSeparatedData(String inputData) { return inputData.contains("|"); } // 比较和校验数据 public List<ValidationResult> compareAndValidate(String fileContent, JsonNode jsonConfig) { List<ValidationResult> results = new ArrayList<>(); Map<String, String> pipeDataMap = objectMapper.convertValue(jsonConfig, Map.class); fileContent = fileContent.replaceAll("\\s+", ""); for (Map.Entry<String, String> entry : pipeDataMap.entrySet()) { String key = entry.getKey(); String value = entry.getValue(); if (!value.isEmpty()) { value = value.replaceAll("\\s+", ""); boolean found = fileContent.contains(value); results.add(new ValidationResult( "FIELD", key, value, found ? "Found" : "Not Found", found )); } } return results; } } 哪里需要改进待优化
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BufferedImage image = ImageIO.read(is); if (image == null) { return MessageUtils.message("image.parsing.failed"); } // 检查图片尺寸，避免过大 if (image.getWidth() * image.getHeight() > MAX_IMAGE...
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