spring-mvc

问题 I have a service interface interface ImageSearchService { // methods... } And I have 2 implementations: @Service class GoogleImageSearchImpl implements ImageSearchService { // methods... } @Service class AzureImageSearchImpl implements ImageSearchService { // methods... } And I have a controller to use one of the both: @Controller ImageSearchController { @Autowired ImageSearchService imageSearch; // Google or Azure ?!? } How can I use a Environment API to set the right one implementation? If

问题 I have a Spring Boot for serving images. My Model is included in my ImageController.java. ImageService contains findPage method. When running my Spring Boot Application I am getting this error. 2018-06-21 15:09:14.777 ERROR 26828 --- [nio-8080-exec-1] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-8080-exec-1] Exception processing template "index": An error happened during template parsing (template: "class path resource [templates/index.html]") org.thymeleaf.exceptions

问题 I have a Spring Boot for serving images. My Model is included in my ImageController.java. ImageService contains findPage method. When running my Spring Boot Application I am getting this error. 2018-06-21 15:09:14.777 ERROR 26828 --- [nio-8080-exec-1] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-8080-exec-1] Exception processing template "index": An error happened during template parsing (template: "class path resource [templates/index.html]") org.thymeleaf.exceptions

问题 I have a Spring Boot for serving images. My Model is included in my ImageController.java. ImageService contains findPage method. When running my Spring Boot Application I am getting this error. 2018-06-21 15:09:14.777 ERROR 26828 --- [nio-8080-exec-1] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-8080-exec-1] Exception processing template "index": An error happened during template parsing (template: "class path resource [templates/index.html]") org.thymeleaf.exceptions

问题 Following Spring Boot documentation I defined my own ErrorAttributes bean (see below), I was able to make the json response to show the information I wanted, including my own error code and message by using a custom exception to wrap that information and generate the error response from it. The only issue with this is that the http status of the response is not matching the one I define in the status attribute, it is not been overridden. @Bean public ErrorAttributes errorAttributes() { return

问题 Following Spring Boot documentation I defined my own ErrorAttributes bean (see below), I was able to make the json response to show the information I wanted, including my own error code and message by using a custom exception to wrap that information and generate the error response from it. The only issue with this is that the http status of the response is not matching the one I define in the status attribute, it is not been overridden. @Bean public ErrorAttributes errorAttributes() { return

问题 Can I do something like this with Spring MVC ? @RequestMapping(value = "/{root}") public abstract class MyBaseController { @PathVariable(value = "root") protected ThreadLocal<String> root; } @Controller public class MyController extends MyBaseController { @RequestMapping(value = "/sayHello") @ResponseBody public String hello() { return "Hello to " + this.root.get(); } } When I request to http://..../roberto/sayHello , I get this as response: Hello to roberto 回答1: You can have a path variable

问题 Can I do something like this with Spring MVC ? @RequestMapping(value = "/{root}") public abstract class MyBaseController { @PathVariable(value = "root") protected ThreadLocal<String> root; } @Controller public class MyController extends MyBaseController { @RequestMapping(value = "/sayHello") @ResponseBody public String hello() { return "Hello to " + this.root.get(); } } When I request to http://..../roberto/sayHello , I get this as response: Hello to roberto 回答1: You can have a path variable

问题 Spring has introduced a new annotation @PropertySources for all classes marked as @Configuration since 4.0 . It takes different @PropertySource as argument. @PropertySources({ @PropertySource("classpath:application.properties"), @PropertySource("file:/tmp/application.properties")}) What I am interested is knowing is the ordering in case of conflict in values for the same key present in multiple properties file. I have not seen any documentation related to this that specifies an ordering. I

问题 I have followed the official files and package structure of spring boot in my application. But I am still getting a whitelabel page error. Most of the answers and suggestions dont solve this problem. Could this be a bug in spring boot? Below is how I have put my codes and the structure of how files and folders are arranged. Application.java @SpringBootApplication public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } } Controller