1. 复现问题

今天在启动spring boot项目报出如下错误：

Exception: Illegal unquoted character ((CTRL-CHAR, code 13)): has to be escaped using backslash to be included in string value
 at [Source: (String)""{
  ""properties"" : { },
  ""id"" : ""34da7f2ba4ec41dba7acd0533018d3e7"",
  ""script"" : null,
  ""groupId"" : ""d0fe7c6e314c4572aeae38b7cea6ea50"",
  ""name"" : ""更新定时任务"",
  ""createTime"" : 1645515608643,
  ""updateTime"" : 1645515608643,
  ""lock"" : ""0"",
  ""method"" : ""POST"",
  ""path"" : ""/updateTimerTask"",
  ""parameters"" : [ ],
  ""option"" : ""[]"",
  ""requestBody"" : ""{\r\n\t\r\n}"",
  ""headers"" : [ ],
  ""paths"" : [ ],
  ""responseBody"" : null,
  ""des"[truncated 119 chars]; line: 1, column: 4]
	at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:2391) ~[jackson-core-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:735) ~[jackson-core-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.core.base.ParserBase._throwUnquotedSpace(ParserBase.java:1110) ~[jackson-core-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.core.json.ReaderBasedJsonParser._finishString2(ReaderBasedJsonParser.java:2155) ~[jackson-core-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.core.json.ReaderBasedJsonParser._finishString(ReaderBasedJsonParser.java:2126) ~[jackson-core-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.core.json.ReaderBasedJsonParser.getValueAsString(ReaderBasedJsonParser.java:363) ~[jackson-core-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.databind.deser.std.StdDeserializer._deserializeFromString(StdDeserializer.java:262) ~[jackson-databind-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1495) ~[jackson-databind-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:196) ~[jackson-databind-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:186) ~[jackson-databind-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:322) ~[jackson-databind-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4674) ~[jackson-databind-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3629) ~[jackson-databind-2.13.1.jar:2.13.1]
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3597) ~[jackson-databind-2.13.1.jar:2.13.1]
	at org.ssssssss.magicapi.utils.JsonUtils.readValue(JsonUtils.java:75) ~[magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.MagicResourceStorage.read(MagicResourceStorage.java:51) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.MagicResourceStorage.readResource(MagicResourceStorage.java:68) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.lambda$null$102(DefaultMagicResourceService.java:214) [magic-api-2.0.1.jar:2.0.1]
	at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_102]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.lambda$refreshGroup$103(DefaultMagicResourceService.java:214) [magic-api-2.0.1.jar:2.0.1]
	at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_102]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.refreshGroup(DefaultMagicResourceService.java:210) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.lambda$null$99(DefaultMagicResourceService.java:191) [magic-api-2.0.1.jar:2.0.1]
	at java.util.HashMap.forEach(HashMap.java:1288) ~[na:1.8.0_102]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.lambda$readAll$100(DefaultMagicResourceService.java:191) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.writeLock(DefaultMagicResourceService.java:892) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.readAll(DefaultMagicResourceService.java:188) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.lambda$read$98(DefaultMagicResourceService.java:178) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.writeLock(DefaultMagicResourceService.java:892) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.read(DefaultMagicResourceService.java:174) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.onApplicationEvent(DefaultMagicResourceService.java:901) [magic-api-2.0.1.jar:2.0.1]
	at org.ssssssss.magicapi.core.service.impl.DefaultMagicResourceService.onApplicationEvent(DefaultMagicResourceService.java:37) [magic-api-2.0.1.jar:2.0.1]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:421) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:378) ~[spring-context-5.3.14.jar:5.3.14]
	at org.springframework.boot.context.event.EventPublishingRunListener.started(EventPublishingRunListener.java:108) ~[spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplicationRunListeners.lambda$started$5(SpringApplicationRunListeners.java:78) ~[spring-boot-2.6.2.jar:2.6.2]
	at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_102]
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:120) ~[spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:114) ~[spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplicationRunListeners.started(SpringApplicationRunListeners.java:78) ~[spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-boot-2.6.2.jar:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290) ~[spring-boot-2.6.2.jar:2.6.2]
	at com.jqp.admin.JqpAdminApplication.main(JqpAdminApplication.java:22) ~[classes/:na]

2. 分析问题

首先解释 Illegal unquoted character ((CTRL-CHAR, code 13)): has to be escaped using backslash to be included in string value这句话的含义是什么，即非法的无引号字符（（CTRL-CHAR，代码 13））：必须使用反斜杠进行转义才能包含在字符串值中。

也就是说上述json数据出现了非法字符，需要将非法字符进行转义。

分析上述json部分数据看到，确实出现了非法字符，如下所示：

{
  ""properties"" : { },
  ""id"" : ""34da7f2ba4ec41dba7acd0533018d3e7"",
  ""script"" : null
}

使用在线json格式化查看如下图所示：

从图中也可以看到，出现了非法字符。

3. 解决问题

既然出现了非法字符串，要么删除非法的字符，要么使用\进行转义。

1. 删除非法字符

{
	"properties": {},
	"id": "34da7f2ba4ec41dba7acd0533018d3e7",
	"script": null
}

2. 使用\转义

{
	"\"properties\"": {},
	"\"id\"": "\"34da7f2ba4ec41dba7acd0533018d3e7\"",
	"\"script\"": null
}

4. 问题总结

报出Illegal unquoted character ((CTRL-CHAR, code 13)): has to be escaped using backslash to be included in string value这个问题的原因就是字符串中出现了非法字符，我们一般采用如下两种方式解决

1. 删除非法字符串。

2. 使用转义字符\将非法字符转义。