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不能夠進行編譯

Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: ognl.OgnlException: source is null for getProperty(null, "showapi_res_body")

at com.imooc.weather.impl.WeatherUtilsImpl.w24h(WeatherUtilsImpl.java:82)

at com.imooc.weather.Applicaton.main(Applicaton.java:24)

Caused by: java.lang.RuntimeException: ognl.OgnlException: source is null for getProperty(null, "showapi_res_body")

at com.imooc.weather.impl.WeatherUtilsImpl.getValue(WeatherUtilsImpl.java:34)

at com.imooc.weather.impl.WeatherUtilsImpl.w24h(WeatherUtilsImpl.java:63)

... 1 more

Caused by: ognl.OgnlException: source is null for getProperty(null, "showapi_res_body")

at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:2410)

at ognl.ASTProperty.getValueBody(ASTProperty.java:114)

at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)

at ognl.SimpleNode.getValue(SimpleNode.java:258)

at ognl.ASTChain.getValueBody(ASTChain.java:141)