我正在调用一个返回XML的REST服务,并使用Jaxb2Marshaller
来封送我的类(例如Foo
,Bar
等)。所以我的客户端代码如下:
HashMap<String, String> vars = new HashMap<String, String>();
vars.put("id", "123");
String url = "http://example.com/foo/{id}";
Foo foo = restTemplate.getForObject(url, Foo.class, vars);
当服务器端的查找失败时,它返回404以及一些XML。我最终得到UnmarshalException
,因为它无法读取XML。
Caused by: javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"exception"). Expected elements are <{}foo>,<{}bar>
回复的主体是:
<exception>
<message>Could not find a Foo for ID 123</message>
</exception>
如何配置RestTemplate
,以便{404}发生时RestTemplate.getForObject()
返回null
?
答案 0 :(得分:28)
Foo foo = null;
try {
foo = restTemplate.getForObject(url, Foo.class, vars);
} catch (HttpClientErrorException ex) {
if (ex.getStatusCode() != HttpStatus.NOT_FOUND) {
throw ex;
}
}
答案 1 :(得分:0)
要捕获与服务器相关的错误,它将处理内部服务器错误,
}catch (HttpServerErrorException e) {
log.error("server error: "+e.getResponseBodyAsString());
ObjectMapper mapper = new ObjectMapper();
EventAPIResponse eh = mapper.readValue(e.getResponseBodyAsString(), EventAPIResponse.class);
log.info("EventAPIResponse toString "+eh.toString());
答案 2 :(得分:0)
要捕获404 NOT FOUND错误,可以使用HttpClientErrorException.NotFound
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