import com.spire.doc.*;
import com.spire.doc.documents.CommentMark;
import com.spire.doc.documents.CommentMarkType;
import com.spire.doc.documents.Paragraph;
import com.spire.doc.documents.TextSelection;
import com.spire.doc.fields.Comment;

public class AddCommentToCharacters {
public static void main(String[] args) {
//加载测试文档
Document doc = new Document();
doc.loadFromFile("test.docx");

//查找指定字符串
TextSelection[] selections = doc.findAllString("皱状厚膜", true, false);

//获取关键字符串所在段落
Paragraph para = selections[0].getAsOneRange().getOwnerParagraph();
int index = para.getChildObjects().indexOf(selections[0].getAsOneRange());

//添加批注ID
CommentMark start = new CommentMark(doc);
start.setCommentId(1);
start.setType(CommentMarkType.Comment_Start);
CommentMark end = new CommentMark(doc);
end.setType(CommentMarkType.Comment_End);
end.setCommentId(1);

//添加批注内容
String str = "给指定字符串添加批注";
Comment comment = new Comment(doc);
comment.getFormat().setCommentId(1);
comment.getBody().addParagraph().appendText(str);
comment.getFormat().setAuthor("作者：");
comment.getFormat().setInitial("CM");
para.getChildObjects().insert(index, start);
para.getChildObjects().insert(index + 1, selections[0].getAsOneRange());
para.getChildObjects().insert(index + 2,end);
para.getChildObjects().insert(index + 3, comment);

//保存文档
doc.saveToFile("字符串批注.docx",FileFormat.Docx_2013);
doc.dispose();
}
}