40 lines
1.1 KiB
Java
40 lines
1.1 KiB
Java
package com.example.mir4updater.utils;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.Reader;
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import java.nio.charset.StandardCharsets;
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public class JsonUtils {
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/**
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* 读取json文件，返回json串
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* @param fileName
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* @return
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*/
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public static String readJsonFile(String fileName) {
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String jsonStr = "";
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try {
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File jsonFile = new File(fileName);
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FileReader fileReader = new FileReader(jsonFile);
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Reader reader = new InputStreamReader(new FileInputStream(jsonFile), StandardCharsets.UTF_8);
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int ch = 0;
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StringBuffer sb = new StringBuffer();
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while ((ch = reader.read()) != -1) {
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sb.append((char) ch);
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}
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fileReader.close();
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reader.close();
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jsonStr = sb.toString();
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return jsonStr;
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} catch (IOException e) {
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e.printStackTrace();
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return null;
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}
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}
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}
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