json字符串去除\\，附带常用的字符输入输出模板

去除json\

    public static String getJson(String obj) {
        obj = obj.replace("\\", "");
        char[] array = obj.toCharArray();
        char[] charArray = new char[array.length - 2];

        for (int i = 1; i < array.length - 1; i++) {
            charArray[i - 1] = array[i];

        }
        return new String(charArray);
    }
	

输入输出模板

import java.io.*; 
public class ReadFile{
    public static void main(String []args)throws IOException{
    /*
     *Linux 系统分隔符为：/
     *Window 系统分割符为：\\
    */
        //读文件
        File file1 = new File("C:\\read.txt");
        FileReader reader = new FileReader(file1);
        //习惯采用bufferReader
        BufferedReader bReader = new BufferedReader(reader);
        //三段论  File->FileReader->BufferReader
        String line = null; 接收读出的每行
        while((line=bReader.readLine())!=null){
            //若该行不为null,则输出line;
            //注意:一行为空表示为"",而不是null
            System.out.println(line);
        }
        //写文件
        File file2 = new File("C:\\write.txt");
        if(!file2.exists()){file2.createNewFile();}//不存在则创建
        FileWriter writer = new FileWriter(file2);
        BufferedWriter bwriter = new BufferedWriter(writer);
        //三段论  File->FileWriter->BufferWriter
        bwriter.write("Hello world!\n");
        //写入一行，需要\n换行 
 
    }
}