我有以下定義PersonDTO:RestTemplate PATCH請求
public class PersonDTO
{
private String id
private String firstName;
private String lastName;
private String maritalStatus;
}
下面是一個簡單的記錄:
{
"id": 1,
"firstName": "John",
"lastName": "Doe",
"maritalStatus": "married"
}
現在,李四被離婚了。所以,我需要發送PATCH請求到這個網址:
http://localhost:8080/people/1
具有以下請求主體:
{
"maritalStatus": "divorced"
}
我無法弄清楚如何做到這一點。以下是我試過到目前爲止:
// Create Person
PersonDTO person = new PersonDTO();
person.setMaritalStatus("Divorced");
// Create HttpEntity
final HttpEntity<ObjectNode> requestEntity = new HttpEntity<>(person);
// Create URL (for eg: localhost:8080/people/1)
final URI url = buildUri(id);
ResponseEntity<Void> responseEntity = restTemplate.exchange(url, HttpMethod.PATCH, requestEntity, Void.class);
這裏有問題,上面:
1)由於我只設置MaritalStatus,其他領域都將是零。因此,如果我打印出請求,它將如下所示:
{
"id": null,
"firstName": "null",
"lastName": "null",
"maritalStatus": "married" // I only need to update this field.
}
這是否意味着我必須先進行GET才能進行修補?
2)我收到以下堆棧跟蹤:
08:48:52.717 ERROR c.n.d.t.s.PersonServiceImpl - Unexpected Exception :
org.springframework.web.client.ResourceAccessException: I/O error on PATCH request for "http://localhost:8080/people/1":Invalid HTTP method: PATCH; nested exception is java.net.ProtocolException: Invalid HTTP method: PATCH
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:580) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:545) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:466) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at com.sp.restclientexample..service.PersonServiceImpl.doPatch(PersonServiceImpl.java:75) ~[classes/:na]
at com.sp.restclientexample..service.PatchTitle.itDoPatch(PatchTitle.java:53) [test-classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_20]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_20]
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) [junit-4.12.jar:4.12]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12]
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) [junit-4.12.jar:4.12]
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73) [spring-test-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82) [spring-test-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73) [spring-test-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:224) [spring-test-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83) [spring-test-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68) [spring-test-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163) [spring-test-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) [.cp/:na]
Caused by: java.net.ProtocolException: Invalid HTTP method: PATCH
at java.net.HttpURLConnection.setRequestMethod(HttpURLConnection.java:440) ~[na:1.8.0_20]
at sun.net.www.protocol.http.HttpURLConnection.setRequestMethod(HttpURLConnection.java:517) ~[na:1.8.0_20]
at org.springframework.http.client.SimpleClientHttpRequestFactory.prepareConnection(SimpleClientHttpRequestFactory.java:209) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.http.client.SimpleClientHttpRequestFactory.createRequest(SimpleClientHttpRequestFactory.java:138) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.http.client.support.HttpAccessor.createRequest(HttpAccessor.java:76) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:565) ~[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
... 33 common frames omitted
從欣賞誰寫客戶端應用程序消耗使用Spring的RestTemplate一個RESTful Web服務鄉親任何指針。
爲了完整起見,我還要說明我們使用SpringDataRest作爲我們的後端restful webservices。
SGB
要保存一些行,您可以在一行中執行RestTemplate初始化'new RestTemplate(new HttpComponentsClientHttpRequestFactory())' – adebasi 2016-12-02 16:03:02
@adebasi你知道爲什麼這是必需的嗎? – peterl 2017-03-14 06:37:10
我認爲用「this」表示你必須設置「HttpComponentsClientHttpRequestFactory」。此提交(https://jira.spring.io/browse/SPR-7985?focusedCommentId=80924&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-80924)回答你的問題。 – adebasi 2017-03-14 09:48:15