Java Spring Boot：如何響應發送重定向html到UI

Question

我已經完成了示例spring引導應用程序。我不知道我錯過了什麼。

的pom.xml

<?xml version="1.0" encoding="UTF-8"?> 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
<modelVersion>4.0.0</modelVersion> 

<groupId>com.example</groupId> 
<artifactId>demo</artifactId> 
<version>0.0.1-SNAPSHOT</version> 
<packaging>jar</packaging> 

<name>SpringBootRestEx</name> 
<description>Demo project for Spring Boot</description> 

<parent> 
    <groupId>org.springframework.boot</groupId> 
    <artifactId>spring-boot-starter-parent</artifactId> 
    <version>1.4.3.RELEASE</version> 
    <relativePath/> <!-- lookup parent from repository --> 
</parent> 

<properties> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 
    <java.version>1.8</java.version> 
</properties> 

<dependencies> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-web</artifactId> 
    </dependency> 

    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-test</artifactId> 
     <scope>test</scope> 
    </dependency> 
</dependencies> 

<build> 
    <plugins> 
     <plugin> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-maven-plugin</artifactId> 
     </plugin> 
    </plugins> 
</build> 

MyApplicationClass

@SpringBootApplication 
public class SpringBootRestExApplication { 
public static void main(String[] args) { 
    SpringApplication.run(SpringBootRestExApplication.class, args); 
    } 
} 

MyRestCallClass

@RestController 
public class RestControllerClass { 
@RequestMapping("/rest/test/") 
    public @ResponseBody void testOne(HttpServletResponse response) throws IOException{ 
    response.sendRedirect("help.html"); 
    } 
} 

AplicationProperyfile

server.port=8787 
server.context-path=/demo 

我下資源&靜態文件夾help.html文件。

我得到404錯誤。

**更新 - 1 ** - 這是我的日誌。

. ____   _   __ _ _ 
/\\/___'_ __ _ _(_)_ __ __ _ \ \ \ \ 
(()\___ | '_ | '_| | '_ \/ _` | \ \ \ \ 
\\/ ___)| |_)| | | | | || (_| | )))) 
    ' |____| .__|_| |_|_| |_\__, |//// 
=========|_|==============|___/=/_/_/_/ 
:: Spring Boot ::  (v1.4.3.RELEASE) 

2016-12-30 12:49:58.781 INFO 9576 --- [   main] com.example.SpringBootRestExApplication : Starting SpringBootRestExApplication on Hydrogen with PID 9576 (D:\18062016_AceKab_WorkShop\10-11-2016_mysql_Acekab\SpringBootRestEx\target\classes started by ace in D:\18062016_AceKab_WorkShop\10-11-2016_mysql_Acekab\SpringBootRestEx) 
2016-12-30 12:49:58.788 INFO 9576 --- [   main] com.example.SpringBootRestExApplication : No active profile set, falling back to default profiles: default 
2016-12-30 12:49:58.940 INFO 9576 --- [   main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@1622f1b: startup date [Fri Dec 30 12:49:58 IST 2016]; root of context hierarchy 
2016-12-30 12:50:02.411 INFO 9576 --- [   main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8787 (http) 
2016-12-30 12:50:02.438 INFO 9576 --- [   main] o.apache.catalina.core.StandardService : Starting service Tomcat 
2016-12-30 12:50:02.440 INFO 9576 --- [   main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.6 
2016-12-30 12:50:02.718 INFO 9576 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/demo] : Initializing Spring embedded WebApplicationContext 
2016-12-30 12:50:02.719 INFO 9576 --- [ost-startStop-1] o.s.web.context.ContextLoader   : Root WebApplicationContext: initialization completed in 3788 ms 
2016-12-30 12:50:03.145 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/] 
2016-12-30 12:50:03.154 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 
2016-12-30 12:50:03.155 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 
2016-12-30 12:50:03.156 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 
2016-12-30 12:50:03.156 INFO 9576 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 
2016-12-30 12:50:03.965 INFO 9576 --- [   main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@1622f1b: startup date [Fri Dec 30 12:49:58 IST 2016]; root of context hierarchy 
2016-12-30 12:50:04.126 INFO 9576 --- [   main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/rest/test/]}" onto public void com.example.RestControllerClass.testOne(javax.servlet.http.HttpServletResponse) throws java.io.IOException 
2016-12-30 12:50:04.137 INFO 9576 --- [   main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest) 
2016-12-30 12:50:04.138 INFO 9576 --- [   main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) 
2016-12-30 12:50:04.222 INFO 9576 --- [   main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 
2016-12-30 12:50:04.222 INFO 9576 --- [   main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 
2016-12-30 12:50:04.313 INFO 9576 --- [   main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 
2016-12-30 12:50:04.628 INFO 9576 --- [   main] o.s.j.e.a.AnnotationMBeanExporter  : Registering beans for JMX exposure on startup 
2016-12-30 12:50:04.803 INFO 9576 --- [   main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8787 (http) 
2016-12-30 12:50:04.820 INFO 9576 --- [   main] com.example.SpringBootRestExApplication : Started SpringBootRestExApplication in 6.889 seconds (JVM running for 7.666) 


2016-12-30 12:52:10.192 INFO 9576 --- [nio-8787-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/demo] : Initializing Spring FrameworkServlet 'dispatcherServlet' 
2016-12-30 12:52:10.192 INFO 9576 --- [nio-8787-exec-1] o.s.web.servlet.DispatcherServlet  : FrameworkServlet 'dispatcherServlet': initialization started 
2016-12-30 12:52:10.222 INFO 9576 --- [nio-8787-exec-1] o.s.web.servlet.DispatcherServlet  : FrameworkServlet 'dispatcherServlet': initialization completed in 30 ms 

Answer 1

首先，我不明白你爲什麼使用@ResponseBody返回類型爲void的方法。去掉它。然後，你需要使用視圖解析器顯示HTML頁面，如果你想重定向，你可以使用的方法象下面這樣：src下的application.properties

@Controller 
public class RestControllerClass { 
@RequestMapping("/rest/test/") 
    public String testOne(HttpServletResponse response) throws IOException{ 
    return "redirect:/help"; 
    } 
} 

HelpController.java

@Controller 
public class HelpController { 
@RequestMapping("/help") 
    public String get(HttpServletResponse response) throws IOException{ 
     return "help"; 
    } 
} 

/主/資源文件夾。

spring.mvc.view.prefix=/static/ 
spring.mvc.view.suffix=.html