9 changed files with 186 additions and 22 deletions
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package com.zdxt.common.util; |
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import com.alibaba.fastjson.JSON; |
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import com.alibaba.fastjson.JSONArray; |
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import com.alibaba.fastjson.JSONObject; |
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import com.fasterxml.jackson.databind.ObjectMapper; |
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import java.nio.charset.StandardCharsets; |
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import java.util.List; |
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import java.util.Map; |
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/** |
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* Fastjson2 解析工具。 |
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* <p> |
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* 兼容包对 String 走 JSONReaderUTF16，在部分 JDK（尤其 Oracle/麒麟 aarch64）上会误报 |
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* {@code invalid escape character EOI}。统一走 UTF-8 字节解析规避该问题，失败时再用 Jackson 兜底。 |
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*/ |
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public final class FastJsonUtil { |
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private static final ObjectMapper JACKSON = new ObjectMapper(); |
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private FastJsonUtil() { |
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} |
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public static JSONObject parseObject(String text) { |
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if (text == null) { |
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return null; |
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} |
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String trimmed = text.trim(); |
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if (trimmed.isEmpty() || "null".equalsIgnoreCase(trimmed)) { |
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return null; |
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} |
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try { |
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// 关键 UTF-8 字节路径，避开 JSONReaderUTF16 的 EOI 误判
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return JSON.parseObject(trimmed.getBytes(StandardCharsets.UTF_8)); |
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} catch (Exception fastjsonEx) { |
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try { |
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@SuppressWarnings("unchecked") |
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Map<String, Object> map = JACKSON.readValue(trimmed, Map.class); |
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return new JSONObject(map); |
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} catch (Exception jacksonEx) { |
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fastjsonEx.addSuppressed(jacksonEx); |
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if (fastjsonEx instanceof RuntimeException) { |
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throw (RuntimeException) fastjsonEx; |
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} |
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throw new RuntimeException(fastjsonEx); |
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} |
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} |
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} |
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public static JSONArray parseArray(String text) { |
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if (text == null) { |
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return null; |
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} |
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String trimmed = text.trim(); |
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if (trimmed.isEmpty() || "null".equalsIgnoreCase(trimmed)) { |
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return null; |
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} |
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try { |
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Object parsed = JSON.parse(trimmed.getBytes(StandardCharsets.UTF_8)); |
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if (parsed instanceof JSONArray) { |
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return (JSONArray) parsed; |
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} |
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if (parsed == null) { |
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return null; |
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} |
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JSONArray arr = new JSONArray(); |
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arr.add(parsed); |
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return arr; |
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} catch (Exception fastjsonEx) { |
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try { |
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List<?> list = JACKSON.readValue(trimmed, List.class); |
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return new JSONArray(list); |
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} catch (Exception jacksonEx) { |
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fastjsonEx.addSuppressed(jacksonEx); |
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if (fastjsonEx instanceof RuntimeException) { |
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throw (RuntimeException) fastjsonEx; |
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} |
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throw new RuntimeException(fastjsonEx); |
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} |
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} |
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} |
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public static <T> T parseObject(String text, Class<T> clazz) { |
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if (text == null) { |
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return null; |
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} |
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String trimmed = text.trim(); |
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if (trimmed.isEmpty() || "null".equalsIgnoreCase(trimmed)) { |
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return null; |
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} |
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try { |
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return JSON.parseObject(trimmed.getBytes(StandardCharsets.UTF_8), clazz); |
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} catch (Exception fastjsonEx) { |
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try { |
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return JACKSON.readValue(trimmed, clazz); |
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} catch (Exception jacksonEx) { |
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fastjsonEx.addSuppressed(jacksonEx); |
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if (fastjsonEx instanceof RuntimeException) { |
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throw (RuntimeException) fastjsonEx; |
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} |
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throw new RuntimeException(fastjsonEx); |
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} |
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} |
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} |
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} |
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