[英]how to escape double quote in xml String generated by jaxb
基本上我需要构建一个 xml 文件,然后将 xml 请求提交给 restTemplate post 操作,如下所示:
final RestTemplate restTemplate1 = new RestTemplate();
List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
converter.setSupportedMediaTypes(Collections.singletonList(MediaType.APPLICATION_XML));
messageConverters.add(converter);
restTemplate1.setMessageConverters(messageConverters);
HttpHeaders headers = new HttpHeaders();
headers.setBasicAuth("okmAdmin", "admin");
headers.setContentType(MediaType.APPLICATION_XML);
JAXBContext context = null;
context = JAXBContext.newInstance(Folder.class);
Marshaller mar = null;
mar = context.createMarshaller();
mar.setProperty("jaxb.encoding", "Unicode");
mar.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.FALSE);
//Print XML String to Console
StringWriter sw = new StringWriter();
Folder folder = new Folder();
folder.setPath("/okm:root/test4");
//Write XML to StringWriter
mar.marshal(folder, sw);
String xmlContent = sw.toString();
System.out.println(xmlContent);
HttpEntity<String> request = new HttpEntity<String>(xmlContent, headers);
ResponseEntity<Folder> response = restTemplate1.postForEntity("http://localhost:8080/OpenKM/services/rest/folder/create", request, Folder.class);
生成的xml如下:
<?xml version="1.0" encoding="Unicode" standalone="yes"?><folder><path>/okm:root/test4</path><permissions>0</permissions><subscribed>false</subscribed><hasChildren>false</hasChildren><style>0</style></folder>
然而,当 resttemplate 提交 xml 时,出现以下错误:
2022-12-05 16:50:21.121 ERROR 15764 --- [nio-8082-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.client.HttpClientErrorException$BadRequest: 400 : "JAXBException occurred : Unexpected character '"' (code 34) in prolog; expected '<'<EOL> at [row,col {unknown-source}]: [1,1]. "] with root cause
根据错误消息,我似乎需要转义双引号。
我怎样才能逃脱它?
尝试像下面这样使用 StringEscapeUtils.escapeXml() :
HttpEntity<String> request = new HttpEntity<String>(StringEscapeUtils.escapeXml(xmlContent), headers);
我设法通过更改以下代码来解决此问题:删除此代码:
MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
添加了这个:
messageConverters.add(new StringHttpMessageConverter());
我没有将 object 转换为文件夹,而是使用了字符串:
ResponseEntity<String> response = restTemplate1.postForEntity("http://localhost:8080/OpenKM/services/rest/folder/create", request, String.class);
完整代码如下:
final RestTemplate restTemplate1 = new RestTemplate();
List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
messageConverters.add(new StringHttpMessageConverter());
restTemplate1.setMessageConverters(messageConverters);
HttpHeaders headers = new HttpHeaders();
headers.setBasicAuth("okmAdmin", "admin");
headers.setContentType(MediaType.APPLICATION_XML);
JAXBContext context = null;
context = JAXBContext.newInstance(Folder.class);
Marshaller mar = null;
mar = context.createMarshaller();
mar.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.FALSE);
//Print XML String to Console
StringWriter sw = new StringWriter();
Folder folder = new Folder();
folder.setPath("/okm:root/test23");
//Write XML to StringWriter
mar.marshal(folder, sw);
HttpEntity<String> request = new HttpEntity<String>(xmlString, headers);
ResponseEntity<String> response = restTemplate1.postForEntity("http://localhost:8080/OpenKM/services/rest/folder/create", request, String.class);
System.out.println(response);
}
如果其他人有同样的问题,我会添加这个。
谢谢
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