HTTP Status 500 - No converter found for return value of type: class java.util.ArrayList
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2024-01-14 11:53:10
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The server encountered an internal error that prevented it from fulfilling this request.
解决办法：就是在springmvc-servlet.xml配置中，配置mvc注解驱动，会自动注册消息转换器，通过消息转换器把Controller的返回值转换成json。
在springmvc-servlet.xml中添加
<mvc:annotation-driven/>
这样就解决了
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