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循環依賴報錯 Requested bean is currently in creation: Is there an unresolvable circular reference?
時間 2020-07-11
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requested
bean
creation
unresolvable
circular
reference
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緣由 今天作項目遇到了這個坑,字面上看是觸發了循環依賴,因爲我使用的是構造器注入,因此遇到循環依賴就會致使報錯。如圖所示,個人依賴鏈造成了一個環路。 java 爲何構造器注入不行 由於要實現循環依賴就得在A調用B,B再調用A的時候,A提早放入singletonFactories三級緩存,不然A和B都無法實例化。而加入singletonFactories三級緩存的前提是執行了構造器,因此構造器注入的
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