JavaParse入门
package cn.com.infosec.netseal.appserver.util;
import cn.com.infosec.netseal.common.util.StringUtils;
import com.alibaba.fastjson.JSON;
import com.github.javaparser.JavaParser;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.Node;
import com.github.javaparser.ast.NodeList;
import com.github.javaparser.ast.body.ClassOrInterfaceDeclaration;
import com.github.javaparser.ast.body.FieldDeclaration;
import com.github.javaparser.ast.body.TypeDeclaration;
import com.github.javaparser.ast.body.VariableDeclarator;
import com.github.javaparser.ast.comments.Comment;
import com.github.javaparser.ast.expr.SimpleName;
import java.io.File;
import java.util.List;
import java.util.Optional;
public class JavaParseTest {
public static void main(String[] args) throws Exception {
String classPath = "E:\\Idea\\NetSeal\\v7\\src\\netseal\\netseal-common\\src\\main\\java\\cn\\com\\infosec\\netseal\\common\\resource\\errCode\\";
String mapName = "subTypeMap";
CompilationUnit parse = JavaParser.parse(new File(classPath));
Optional<ClassOrInterfaceDeclaration> errSubType = parse.getClassByName("ErrSubType");
errSubType.ifPresent((c) -> {
// 获取类名/类注释
String className = c.getName().toString();
c.getComment();
// 获取类里的变量、方法等子节点
List<Node> list = c.getChildNodes();
System.out.println("总个数:" + list.size());
for (Node nodeTmp : list) {
if (!(nodeTmp instanceof FieldDeclaration))
continue;
FieldDeclaration node = (FieldDeclaration) nodeTmp;
// 获取变量的类型、变量名称和变量值；
VariableDeclarator variable = node.getVariable(0);
String varName = variable.getNameAsString();
String varType = variable.getTypeAsString();
// 获取变量注释
String content = "";
Optional<Comment> comment = node.getComment();
if (comment != null && comment.get().getContent() != "") {
content = comment.get().getContent().replace("*", "").trim();
}
System.out.println(StringUtils.format("{}.put({}.{}, \"{}\");", mapName, className, varName, content));
}
});
}
}