报错信息
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | org.springframework.data.redis.serializer.SerializationException: Could not read JSON: Illegal character ((CTRL-CHAR, code 0)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: (byte[])" "haDa""; line: 1, column: 2]; nested exception is com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 0)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: (byte[])" "haDa""; line: 1, column: 2] at org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer.deserialize(Jackson2JsonRedisSerializer.java:75) at org.springframework.data.redis.core.AbstractOperations.deserializeValue(AbstractOperations.java:335) at org.springframework.data.redis.core.AbstractOperations$ValueDeserializingRedisCallback.doInRedis(AbstractOperations.java:61) at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:228) at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:188) at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:96) at org.springframework.data.redis.core.DefaultValueOperations.get(DefaultValueOperations.java:53) at com.example.demo.controller.RedisTypeTest.string3(RedisTypeTest.java:70) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74) at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84) at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75) at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86) at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) Caused by: com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 0)): only regular white space (\r, \n, \t) is allowed between tokens at [Source: (byte[])" "haDa""; line: 1, column: 2] at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1840) at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:712) at com.fasterxml.jackson.core.base.ParserMinimalBase._throwInvalidSpace(ParserMinimalBase.java:690) at com.fasterxml.jackson.core.json.ReaderBasedJsonParser._skipWSOrEnd(ReaderBasedJsonParser.java:2373) at com.fasterxml.jackson.core.json.ReaderBasedJsonParser.nextToken(ReaderBasedJsonParser.java:672) at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:4340) at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4189) at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3309) at org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer.deserialize(Jackson2JsonRedisSerializer.java:73) ... 37 more |
我的测试代码:
1 2 3 4 5 6 7 8 | @Test public void string3() { // 覆写(overwrite) 给定 key 所储存的字符串值，从偏移量 offset 开始 redisTemplate.opsForValue().set("king","haDa",2); Object king = redisTemplate.opsForValue().get("king"); System.out.println(king); } |
org.springframework.data.redis.serializer.SerializationException: Could not read JSON
由此可知Redis序列化异常，不能读取Json
所以我们在获取value前应该把值设置为序列化：
redisTemplate.setValueSerializer(new StringRedisSerializer());
更改后代码及控制台输出：
1 2 3 4 5 6 7 8 9 | @Test public void string3() { // 覆写(overwrite) 给定 key 所储存的字符串值，从偏移量 offset 开始 redisTemplate.setValueSerializer(new StringRedisSerializer()); redisTemplate.opsForValue().set("king","haDa",2); Object king = redisTemplate.opsForValue().get("king"); System.out.println(king); } |
