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commons配置abstractconfiguration的get()和getarray()有什么问题?

apache-commons-config properties-file arrays

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Gerold Broser · 技术社区 · 6 年前

使用 commons-configuration2:2.4 .

my.properties :

arrayOfSingle=0xA
arrayOfMultiples=0xD,0xA

γ

CONFIG.getArray(int[].class, "arrayOfSingle"));

  org.apache.commons.configuration2.ex.ConversionException:
    The value '0xA' (class java.lang.String) can't be converted to a [I object

CONFIG.getArray(int[].class, "arrayOfMultiples"));

  org.apache.commons.configuration2.ex.ConversionException:
    The value '0xD,0xA' (class java.lang.String) can't be converted to a [I object

CONFIG.getArray(Integer[].class, "arrayOfSingle"));

  org.apache.commons.configuration2.ex.ConversionException: 
    The value '0xA' (class java.lang.String) can't be converted to a [Ljava.lang.Integer; object

CONFIG.getArray(Integer[].class, "arrayOfMultiples"));

  org.apache.commons.configuration2.ex.ConversionException:
    The value '0xD,0xA' (class java.lang.String) can't be converted to a [Ljava.lang.Integer; object

CONFIG.get(int[].class, "arrayOfSingle") // prints "[I@7dba7035", i.e.works

CONFIG.get(int[].class, "arrayOfMultiples")

  org.apache.commons.configuration2.ex.ConversionException:
    Could not convert 0xD,0xA to java.lang.Integer! Invalid hex number.

CONFIG.get(Integer[].class, "arrayOfSingle") // prints "[Ljava.lang.Integer;@44d379bb", i.e. works

CONFIG.get(Integer[].class, "arrayOfMultiples")

  org.apache.commons.configuration2.ex.ConversionException:
    Could not convert 0xD,0xA to java.lang.Integer! Invalid hex number.

getArray(Class<?> cls, String key, Object defaultValue) 已弃用(使用 get(Class<T> cls, String key, T defaultValue) 建议)但是 getArray(Class<?> cls, String key) 不是和 get(Class<T> cls, String key) 也不起作用。

1 回复 | 直到 6 年前

1

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Gerold Broser 6 年前

遗弃 getArray() 使用中描述的多行变量 Lists and arrays 作品。

my.properties :

arrayOfMultiples=0xD
arrayOfMultiples=0xA

_

CONFIG.get(int[].class, "arrayOfMultiples")
CONFIG.get(Integer[].class, "arrayOfMultiples")