ArrayIndexOutOfBoundsException

超出数组长度抛出此异常
ArrayIndexOutOfBoundsException

FileWriter wri = new FileWriter(file);
            BufferedWriter bwri = new BufferedWriter(wri);
            for(int i = 0;**i<=eso**.length;i++){
                bwri.write(eso[i]);
                bwri.newLine();
            }