我想习惯的JavaCompiler进行,并试图编译它的程序,我可以成功编译包含单个文件的,但是当我尝试编译多个文件的项目计划。 我得到的编译实现其他类并在有史以来类使用实现类的方法文件中的错误。
下面是我使用的编译Java代码的代码
private final String directoryForBin = "C:/TempBINfolder/bin";
public List doCompilation(String sourceCode, String locationOfFile) {
List<String> compile = new ArrayList<>();
SimpleJavaFileObject fileObject = new DynamicJavaSourceCodeObject(locationOfFile, sourceCode);
JavaFileObject javaFileObjects[] = new JavaFileObject[]{fileObject};
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager stdFileManager = compiler.getStandardFileManager(null, Locale.getDefault(), null);
Iterable<? extends JavaFileObject> compilationUnits = Arrays.asList(javaFileObjects);
// creates a Temp BIN foler on the C: drive to add .class files for compiling
new File(directoryForBin).mkdirs();
String[] compileOptions = new String[]{"-d", directoryForBin, "-classpath", System.getProperty("java.class.path")};
Iterable<String> compilationOptions = Arrays.asList(compileOptions);
DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
CompilationTask compilerTask = compiler.getTask(null, stdFileManager, diagnostics, compilationOptions, null, compilationUnits);
boolean status = compilerTask.call();
if (!status) {//If compilation error occurs
// Iterate through each compilation problem and print it
for (Diagnostic diagnostic : diagnostics.getDiagnostics()) {
compile.add(diagnostic.getKind().toString()+" on line "+ diagnostic.getLineNumber() +"\nIn file: \n"+ diagnostic.toString()+"\n\n");
}
}
try {
stdFileManager.close();//Close the file manager
} catch (IOException e) {
e.printStackTrace();
}
return compile;
}
这里是我试图编译的类的一个样本
public class IntegerComparator
implements Comparator<Integer>
{
public IntegerComparator(){}
public int compare(Integer a, Integer b)
{ int aValue = a.intValue();
int bValue = b.intValue();
return (aValue - bValue);
}
}
有谁知道是怎么回事错在这里,为什么我的代码没有找到,即使它是在同一文件夹作为实现它的类的实现类?
是不是因为包不位于程序的顶部?
编辑:这是对于上面的例子中的输出误差
ERROR on line 8
In file:
/projects/Compiler/Studentfilestotest/LAB3/aroc1/a3/IntegerComparator.java:8: error: cannot find symbol
implements Comparator<Integer>
^
symbol: class Comparator
这就是System.getProperty("java.class.path")
正在恢复
C:\projects\Compiler\Compiler\Jar Files\jsyntaxpane-0.9.5-b29.jar;
C:\projects\Compiler\Compiler\Jar Files\jtar-1.1.jar;
C:\projects\Compiler\Compiler\Jar Files\sqlitejdbc-v056.jar;
C:\Program Files\NetBeans 7.1.2\java\modules\ext\beansbinding-1.2.1.jar;
C:\Program Files\NetBeans 7.1.2\java\modules\ext\AbsoluteLayout.jar;
C:\projects\Compiler\Compiler\Jar Files\junit-4.11-SNAPSHOT-20120416-1530.jar;
C:\projects\Compiler\Compiler\Jar Files\commons-io-2.4-bin.zip;
C:\projects\Compiler\Compiler\Jar Files\commons-io-2.4\commons-io-2.4.jar;
C:\projects\Compiler\Compiler\Jar Files\poi-3.8\poi-3.8-20120326.jar;
C:\projects\Compiler\Compiler\Jar Files\javamail-1.4.5\mail.jar;
C:\projects\Compiler\Compiler\build\classes