openfegin Illegal character in path at index

爱被打了一巴掌 2022-03-06 01:46 178阅读 0赞

使用openfeign遇到一个简单错误：

Caused by: java.net.URISyntaxException: Illegal character in path at index 32: http://test-service/v1/tests/py/{pid}
    	at java.net.URI$Parser.fail(URI.java:2848) ~[?:1.8.0_181]
    	at java.net.URI$Parser.checkChars(URI.java:3021) ~[?:1.8.0_181]
    	at java.net.URI$Parser.parseHierarchical(URI.java:3105) ~[?:1.8.0_181]
    	at java.net.URI$Parser.parse(URI.java:3053) ~[?:1.8.0_181]
    	at java.net.URI.<init>(URI.java:588) ~[?:1.8.0_181]
    	at java.net.URI.create(URI.java:850) ~[?:1.8.0_181]
    	at org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:56) ~[spring-cloud-openfeign-core-2.0.2.RELEASE.jar:2.0.2.RELEASE]
    	at org.springframework.cloud.sleuth.instrument.web.client.feign.TraceLoadBalancerFeignClient.execute(TraceLoadBalancerFeignClient.java:67) ~[spring-cloud-sleuth-core-2.0.2.RELEASE.jar:2.0.2.RELEASE]
    	at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:98) ~[feign-core-9.7.0.jar:?]
    	at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:77) ~[feign-core-9.7.0.jar:?]

从错误上看，这只是一个非法的url造成的，但是实际检查发现，根本原因不是这个，我有一个commonservice需要调用testservice，调用代码：

@GetMapping(value= "v1/tests/py/{pid}")
        Message<List<PPyVO>> getPPy(@PathVariable("pid") Long pid);

发现调用这个接口的时候，传递的参数是null，原来我认为就算是null也应该把\{pid\}给替换掉，但是实际上并不会，所以产生了这个问题。