如何解决Java中的500 Internal Server Error？

问题描述

我收到Java中的错误500 Internal Server Error

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transformToListClass': Invocation of init method failed; nested exception is java.lang.RuntimeException: org.springframework.web.client.HttpServerErrorException$InternalServerError: 500 Internal Server Error: [{"timestamp":"2020-08-20T20:48:50.993+0000","status":500,"error":"Internal Server Error","message":"Request processing failed; nested exception is java.lang.Exception: java.lang.RuntimeException: error while fopping..","path":"/v1/en/E_TEMPLATE"}]

Caused by: java.lang.RuntimeException: org.springframework.web.client.HttpServerErrorException$InternalServerError: 500 Internal Server Error: [{"timestamp":"2020-08-20T20:48:50.993+0000","path":"/v1/en/E_TEMPLATE"}]

Caused by: org.springframework.web.client.HttpServerErrorException$InternalServerError: 500 Internal Server Error: [{"timestamp":"2020-08-20T20:48:50.993+0000","path":"/v1/en/E_TEMPLATE"}]

我已经打开了两个spring应用程序，一个在端口8080上运行，另一个在端口8013上运行。

我正在从端口8080到端口8013发出如下发布请求：

我也在使用restTemplate标头中嵌入的基本身份验证

public ImageDescriptor generateImage(String payLoad,String templateName) {
    try {
        ImageDescriptor descriptor = new ImageDescriptor();

        String MEl = "http://localhost:8013/v1/en";
      String eURL = MEL.concat(Constant.F_SLASH).concat(templateName);

       log.info("payload" + payLoad);

        ResponseEntity<Resource> responseEntity = restTemplate.exchange(
                eURL,HttpMethod.POST,ncbiService.getStringHttpEntityWithPayload(payLoad),Resource.class);
      log.info(String.format("%s generateImage Result: [%s] ",responseEntity.getBody().getInputStream()));
        descriptor.setInputStream(Objects.requireNonNull(responseEntity.getBody()).getInputStream());

        convert(responseEntity.getBody().getInputStream(),"sherrr.pdf");

        log.info("file is:"+ convert(responseEntity.getBody().getInputStream(),"sherrr.pdf"));

        return descriptor;
    } catch (IOException e) {
        e.printStackTrace();
        log.error(" generate image failed " + e.getMessage());
        throw new RuntimeException(e);
    }

}

下面是端口8013中的服务，我正在端口8080中调用它：

@RestController()
@RequestMapping("/v1/e")
public class EcrionController {

@Autowired
private FOPService fopService;
@PostMapping(path = "{documentType}",consumes = "application/json",produces = "application/json")
public ResponseEntity<InputStreamResource> createDocument(@PathVariable DocType documentType,@RequestBody String payload) throws Exception {
    InputStream inputStream = null;
    try {
        LOGGER.info(String.format("Document Type: ",documentType.toString()));
        LOGGER.info(String.format("PayLoad : %s",payload));
        inputStream = fopService.doFOP(payload,documentType);
        InputStreamResource streamResource = new InputStreamResource(inputStream);
        return ResponseEntity.ok()
                .contentType(MediaType.parseMediaType(MediaType.APPLICATION_PDF_VALUE))
                .body(streamResource);
    } catch (Exception ex) {
        LOGGER.error("Error",ex);
        throw new Exception(ex);
    }

}

端口8013中的安全服务如下

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Value("${spring.security.user.name}")
    private String username;
    @Value("${spring.security.user.password}")
    private String password;
    @Value("${spring.security.user.roles}")
    private String roles;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .csrf().disable()
                .authorizeRequests().anyRequest().authenticated()
                .and()
                .httpBasic();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication()
                .withUser(username)
                .password(passwordEncoder().encode(password))
                .roles(roles);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

}

如何摆脱Java中的500 Internal Server Error？

解决方法

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