groovy: 1: unable to resolve class difflib.DiffUtils @ line 1, column 1. import difflib.DiffUtils

这个错误通常是因为你的项目中没有添加`java-diff-utils`这个依赖，或者依赖的版本不正确。你可以检查一下你的`build.gradle`文件中是否添加了`java-diff-utils`这个依赖，例如： ``` implementation 'io.github.java-diff-utils:java-diff-utils:4.12' ``` 如果已经添加了依赖，你可以尝试在命令行中执行`gradle clean build`命令，清除缓存并重新构建项目，看看是否可以解决问题。如果还是无法解决问题，你可以尝试手动下载`java-diff-utils`的jar包，将它添加到项目的`lib`目录下，然后在`build.gradle`文件中添加如下代码： ``` dependencies { compile fileTree(dir: 'lib', include: ['*.jar']) } ``` 这样就可以将`lib`目录下的jar包添加到项目依赖中，然后再次执行`gradle clean build`命令，看看是否可以解决问题。

unable to resolve class MarkupBuilder @ line 68, column 5. new MarkupBuilder(out).with {

抱歉，这是因为缺少对 `groovy.xml.MarkupBuilder` 类的引用。请在脚本的开头添加以下语句： ```groovy import groovy.xml.MarkupBuilder ``` 这样就可以正确解析 `MarkupBuilder` 类了。完整的脚本应该是这样的： ```groovy @Grab(group='com.googlecode.java-diff-utils', module='diffutils', version='1.3.0') import difflib.* import java.nio.file.* import java.nio.charset.* import groovy.xml.MarkupBuilder // 定义要比较的两个文件夹路径 def folder1 = Paths.get("path/to/folder1") def folder2 = Paths.get("path/to/folder2") // 获取两个文件夹下的所有文件 def files1 = Files.walk(folder1).filter{Files.isRegularFile(it)}.toList() def files2 = Files.walk(folder2).filter{Files.isRegularFile(it)}.toList() // 定义 HTML 文件的模板 def htmlTemplate = """ <html> <head> <title>${"DIFF: " + file1.getFileName()}</title> <style> .added { background-color: #aaffaa; } .deleted { background-color: #ffaaaa; } .changed { background-color: #ffffaa; } </style> </head> <body> <h1>${"DIFF: " + file1.getFileName()}</h1> <table> <tr> <th>${folder1.toString()}</th> <th>${folder2.toString()}</th> </tr> <% for (diff in diffs) { if (diff.operation == Operation.DELETE) { out << "<tr><td class='deleted'>${diff.text}</td><td></td></tr>" } else if (diff.operation == Operation.INSERT) { out << "<tr><td></td><td class='added'>${diff.text}</td></tr>" } else if (diff.operation == Operation.CHANGE) { out << "<tr><td class='deleted'>${diff.text1}</td><td class='added'>${diff.text2}</td></tr>" } else { out << "<tr><td>${diff.text}</td><td>${diff.text}</td></tr>" } } %> </table> </body> </html> """ // 遍历两个文件夹下的所有文件，进行比较，并将结果写入 HTML 文件 (files1 + files2).unique().each { file -> def relativePath = folder1.relativize(file) def file1 = folder1.resolve(relativePath) def file2 = folder2.resolve(relativePath) def diffs = [] if (Files.exists(file1) && Files.exists(file2)) { // 两个文件都存在，进行比较 def lines1 = Files.readAllLines(file1, StandardCharsets.UTF_8) def lines2 = Files.readAllLines(file2, StandardCharsets.UTF_8) diffs = new DiffRowGenerator.Builder().showInlineDiffs(true).build().generateDiffRows(lines1, lines2) } else { // 只有一个文件存在，输出提示信息 diffs = [new DiffRow(Operation.INSERT, "[ERROR] File not found: ${file1.toAbsolutePath()}"), new DiffRow(Operation.DELETE, "[ERROR] File not found: ${file2.toAbsolutePath()}")] } // 生成 HTML 文件并写入比较结果 def htmlContent = new StringWriter().with { out -> new MarkupBuilder(out).with { mkp.xml() mkp.template(htmlTemplate).with { setProperty('file1', file1.getFileName()) setProperty('file2', file2.getFileName()) setProperty('diffs', diffs) } } return out.toString() } def htmlFile = new File("path/to/output/${relativePath}.html") htmlFile.parentFile.mkdirs() htmlFile.write(htmlContent) } ```

解决：Reason: groovy.lang.MissingMethodException: No signature of method: static com.github.difflib.DiffUtils.htmlDiff() is applicable for argument types: (java.util.ArrayList, java.util.ArrayList) values: [["ID","NAME","NAME","EMAIL", "011","John","22","John@email.com", ...], ...]

这个错误提示说明 `DiffUtils.htmlDiff()` 方法没有接受两个 `ArrayList` 类型的参数。这是因为 `DiffUtils.htmlDiff()` 方法需要接受两个 `List<String>` 类型的参数，而不是 `ArrayList` 类型。你可以尝试将 `ArrayList` 转换为 `List<String>` 类型，例如： ```groovy def lines1 = Files.readAllLines(file1).toList() def lines2 = Files.readAllLines(file2).toList() def diff = DiffUtils.diff(lines1, lines2) if (!diff.getDeltas().isEmpty()) { // Differences found, generate HTML report def html = DiffUtils.htmlDiff(lines1, lines2) def diffFile = diffOutputFolder.resolve("${file1.fileName}-diff.html") Files.write(diffFile, html.getBytes()) } ``` 这样，`DiffUtils.htmlDiff()` 方法就可以正确地接受 `List<String>` 类型的参数了。

groovy: 1: unable to resolve class difflib.DiffUtils @ line 1, column 1. import difflib.DiffUtils

unable to resolve class MarkupBuilder @ line 68, column 5. new MarkupBuilder(out).with {

解决：Reason: groovy.lang.MissingMethodException: No signature of method: static com.github.difflib.DiffUtils.htmlDiff() is applicable for argument types: (java.util.ArrayList, java.util.ArrayList) values: [["ID","NAME","NAME","EMAIL", "011","John","22","John@email.com", ...], ...]

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