[英]How to handle and report to client Web Service Exceptions?
我有两个应用程序。 一个春季启动的Web服务,另一个使用它的服务。 我不确定如何处理异常并将其报告给客户端。
公开Web服务的方法:
//web service com springboot
@PostMapping(value = "/save", produces = {MediaType.APPLICATION_XML_VALUE, MediaType.APPLICATION_JSON_VALUE},
consumes = {MediaType.APPLICATION_XML_VALUE, MediaType.APPLICATION_JSON_VALUE})
public Pessoa save(@RequestBody Pessoa pessoa) {
// email field is unique, might throw constraint violation...
return pessoaRepository.save(pessoa);
}
以及使用它的客户端应用程序(没有spring,只有javaEE Client API):
public Pessoa savePessoa(Pessoa pessoa) {
Client client = ClientBuilder.newClient();
WebTarget target = client.target(URL_WS+ "/save");
Entity<Pessoa> data = Entity.entity(pessoa, MediaType.APPLICATION_XML_TYPE);
pessoa = target.request(MediaType.APPLICATION_XML_TYPE).post(data, Pessoa.class);
return pessoa;
}
Pessoa的电子邮件字段是唯一的,保存时会触发一些违反约束的异常。 如果有例外,我该如何正确地向客户报告?
创建一个异常类
public class PessoaException extends RuntimeException {
public PessoaException(String exception) {
super(exception);
}
}
更改您的服务代码如下:-
@PostMapping(value = "/save", produces = {MediaType.APPLICATION_XML_VALUE, MediaType.APPLICATION_JSON_VALUE},
consumes = {MediaType.APPLICATION_XML_VALUE, MediaType.APPLICATION_JSON_VALUE})
public Pessoa save(@RequestBody Pessoa pessoa) {
// email field is unique, might throw constraint violation...
try{
Pessoa p = pessoaRepository.save(pessoa);
}catch(Exception e){
throw new PessoaException("Message" + e);
}
return p;
}
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