12、spring报错总结
2017-12-02 本文已影响0人
ltjxwxz
1、用@ResponseBody注解想要让spring自动把JavaBean转成json串,报错:
java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/JsonProcessingException
需要增加jackson支持,如下:
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.1.0</version>
</dependency>
又报错:
nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/util/DefaultIndenter
明天加了jackson包,还是找不到,原来是跟spring版本的冲突,改成2.8.7就好了。