No converter found for return value of type: class java.util.ArrayList

Posted 2022-12-10 闲言博客

错误产生环境

springmvc方法实验@ResponseBody注解时产生

错误描述

No converter found for return value of type: class java.util.ArrayList

错误原因

@ResponseBody注解要依赖jackson包

解决办法

添加jackson依赖

<dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.11.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.11.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.11.0</version>
    </dependency>