将json字符串处理对json对象时报错如下：

com.alibaba.fastjson.JSONException: illegal identifier : \pos 1, line 1, column 2
at com.alibaba.fastjson.parser.JSONLexerBase.scanSymbolUnQuoted(JSONLexerBase.java:830) ~[fastjson-1.2.59.jar:?]
	at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:286) ~[fastjson-1.2.59.jar:?]
	at com.alibaba.fastjson.parser.DefaultJSONParser.parse(DefaultJSONParser.java:1394) ~[fastjson-1.2.59.jar:?]
	at com.alibaba.fastjson.parser.DefaultJSONParser.parse(DefaultJSONParser.java:1360) ~[fastjson-1.2.59.jar:?]
	at com.alibaba.fastjson.JSON.parse(JSON.java:165) ~[fastjson-1.2.59.jar:?]
	at com.alibaba.fastjson.JSON.parse(JSON.java:175) ~[fastjson-1.2.59.jar:?]
	at com.alibaba.fastjson.JSON.parse(JSON.java:144) ~[fastjson-1.2.59.jar:?]
	at com.alibaba.fastjson.JSON.parseObject(JSON.java:236) ~[fastjson-1.2.59.jar:?]
	at com.fline.zjsecurity.mgmt.service.impl.DecryptTaskMgmtServiceImpl.decryptInterfaceData(DecryptTaskMgmtServiceImpl.java:359) ~[classes/:?]
	at com.fline.zjsecurity.mgmt.service.impl.DecryptTaskMgmtServiceImpl.decryptData(DecryptTaskMgmtServiceImpl.java:195) ~[classes/:?]
	at com.fline.zjsecurity.mgmt.service.impl.DecryptTaskMgmtServiceImpl$$FastClassBySpringCGLIB$$6155c3a7.invoke(<generated>) ~[classes/:?]
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:769) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	……

原字符串为：{\"AAC001\":\"d24b8cf9a7933142\",\"AAC003\":\"a9d24c17fa430a9\",\"AAC004\":\"6fabd7627c8de65f8336eef02fd09d1b80b00000058009558678838c4405c06\"}

报错原因是，在json反序列化时存在转义字符。
解决方案：在处理字符串之前，先将字符串去除转义 StringEscapeUtils.unescapeJava(String data)

json报错 | com.alibaba.fastjson.JSONException: illegal identifier : \pos 1, line 1, column 2