idea设置Spring boot工程环境变量后，启动报错(Circular placeholder reference)

最新推荐文章于 2025-11-20 11:26:21 发布

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#idea #spring boot #Circular placeholder reference #环境变量

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本文介绍了当使用Spring框架配置属性时出现循环引用错误的具体原因及解决方案。主要针对因属性文件配置不当导致的Caused by: java.lang.IllegalArgumentException: Circular placeholder reference 'canal.host'异常，并提供了解决该问题的正确做法。

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1. 初始设置

2. 启动报错

Caused by: java.lang.IllegalArgumentException: Circular placeholder reference 'canal.host' in property definitions

              atorg.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:139)

              at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:160)

              atorg.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:124)

              atorg.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:237)

              atorg.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:211)

              atorg.springframework.core.env.AbstractPropertyResolver.resolveNestedPlaceholders(AbstractPropertyResolver.java:228)

              atorg.springframework.core.env.PropertySourcesPropertyResolver.getProperty(PropertySourcesPropertyResolver.java:88)

              atorg.springframework.core.env.PropertySourcesPropertyResolver.getProperty(PropertySourcesPropertyResolver.java:62)