以追加的方式写入文件

public void appendResult(String content){
        
        String filePath = System.getProperty("user.dir");
        String fileName = "sys_check_info.txt";
        BufferedWriter bufferOut = null;
        try{
            
            String fileDir = filePath +"/"+fileName;
            File file = new File(fileDir);
            
            if(!file.exists()){
                file.createNewFile();
            }
            //追加方式写入文件
            bufferOut = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file, true),"UTF-8"));            
            bufferOut.write(content);
            bufferOut.newLine();
        }catch(Exception e){
            
        }finally{
            try {     
                if(bufferOut != null){  
                    bufferOut.close();     
                }  
            } catch (IOException e) {     
                e.printStackTrace();     
            }             
        }
    }

public static void main(String[] args) {
        GenerateResult gr = new GenerateResult();
        String cont1 = "I like you!";
        String cont2 = "I love you!";
        String cont3 = "I want you!";
        gr.appendResult(cont1);
        gr.appendResult(cont2);
        gr.appendResult(cont3);        
    }

文件内容:
I like you!
I love you!
I want you!