jdk9源文件编译器默认只支持单java文件编译，如何解决

野性酷女 2024-02-18 17:45 34阅读 0赞

jason/com/sun/tools/javac/main/Option.java中public void process(OptionHelper helper, String option) throws InvalidValueException方法添加一个对D:\programs\javac\src\*.java的处理，详细实现如下：

修改前代码如下：  
public void process(OptionHelper helper, String option) throws InvalidValueException \{  
if (option.endsWith(".java") ) \{  
Path p = Paths.get(option);  
if (!Files.exists(p)) \{  
throw helper.newInvalidValueException("err.file.not.found", p);  
\}  
if (!Files.isRegularFile(p)) \{  
throw helper.newInvalidValueException("err.file.not.file", p);  
\}  
helper.addFile(p);  
\} else \{  
helper.addClassName(option);  
\}  
\}  
  
  
修改后代码：  
public void showFilesOfPath(OptionHelper helper,File f) throws InvalidValueException  
\{  
File\[\] fileArray=f.listFiles();  
if(fileArray!=null)  
\{  
for (int i = 0; i < fileArray.length; i++) \{  
//递归调用  
if(fileArray\[i\].toString().endsWith(".java"))  
\{  
Path p = Paths.get(fileArray\[i\].toString());  
if (!Files.exists(p))  
\{  
throw helper.newInvalidValueException("err.file.not.found", p);  
\}  
if (!Files.isRegularFile(p))  
\{  
throw helper.newInvalidValueException("err.file.not.file", p);  
\}  
helper.addFile(p);  
\}  
else if(fileArray\[i\].isDirectory())  
\{  
showFilesOfPath(helper,fileArray\[i\]);  
\}  
\}  
\}  
\}  
  
  
@Override  
public void process(OptionHelper helper, String option) throws InvalidValueException \{  
if(option.endsWith("\*.java"))  
\{  
String s2=option.replace("\*.java", "");  
File f=new File(s2);  
if(f.isDirectory())  
\{  
showFilesOfPath(helper,f);  
\}  
\}  
else if (option.endsWith(".java") )  
\{  
Path p = Paths.get(option);  
if (!Files.exists(p)) \{  
throw helper.newInvalidValueException("err.file.not.found", p);  
\}  
if (!Files.isRegularFile(p)) \{  
throw helper.newInvalidValueException("err.file.not.file", p);  
\}  
helper.addFile(p);  
\} else \{  
helper.addClassName(option);  
\}  
\}

测试结果(把javac编译器用我们新的编译器编译一把)：

效果：