如何实现java读取text文件为String？

BufferedReader br=new BufferedReader(new FileReader(fileName))\x0d\x0aString line=""\x0d\x0aStringBuffer buffer = new StringBuffer()\x0d\x0awhile((line=br.readLine())!=null){\x0d\x0abuffer.append(line)\x0d\x0a}\x0d\x0aString fileContent = buffer.toString()

importjava.io.BufferedReader\x0d\x0aimportjava.io.File\x0d\x0aimportjava.io.FileReader\x0d\x0aimportjava.io.IOException\x0d\x0a\x0d\x0apublicclassReadFile{\x0d\x0a\x0d\x0apublicstaticvoidmain(String[]args)throwsIOException{\x0d\x0a\x0d\x0aStringfileContent=readFileContent("")\x0d\x0a\x0d\x0aSystem.out.println(fileContent)\x0d\x0a}\x0d\x0a\x0d\x0a//参数string为你的文件名\x0d\x0aprivatestaticStringreadFileContent(StringfileName)throwsIOException{\x0d\x0a\x0d\x0aFilefile=newFile(fileName)\x0d\x0a\x0d\x0aBufferedReaderbf=newBufferedReader(newFileReader(file))\x0d\x0a\x0d\x0aStringcontent=""\x0d\x0aStringBuildersb=newStringBuilder()\x0d\x0a\x0d\x0awhile(content!=null){\x0d\x0acontent=bf.readLine()\x0d\x0a\x0d\x0aif(content==null){\x0d\x0abreak\x0d\x0a}\x0d\x0a\x0d\x0asb.append(content.trim())\x0d\x0a}\x0d\x0a\x0d\x0abf.close()\x0d\x0areturnsb.toString()\x0d\x0a}\x0d\x0a}

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