简述
原项目是springboot 使用默认的thymeleaf模板
新需求需要同时支持JSP代码
原有thymeleaf代码目录 src/main/resources/templates
JSP模板目录 src/main/webapp/WEB-INF/view/jsp
添加JSP集成
- 在pom.xml中添加支持jsp的相关依赖
<!-- 在JSP页面中使用taglib指定引入jstl标签库 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- 使用jsp引擎，springboot内置tomcat没有此依赖 -->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
- 重写方法对JSP视图进行配置
@Configuration
public class ViewResolverConfiguration {
@Configuration//用来定义 DispatcherServlet 应用上下文中的 bean
@EnableWebMvc
/*@ComponentScan("com.mall.web.controller.test")*///扫描控制器组件
public class WebConfig extends WebMvcConfigurerAdapter/*这个适配器已过时*/{
@Value("${my.profile}")
private String my_profile;
private final String[] CLASSPATH_RESOURCE_LOCATIONS = {
"classpath:/META-INF/resources/", "classpath:/resources/",
"classpath:/static/", "classpath:/public/"};
@Bean
public ViewResolver viewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/view/");
resolver.setSuffix(".jsp");
resolver.setViewNames("jsp/*");//当控制器返回的viewName符合规则时才使用这个视图解析器
resolver.setOrder(0);//设置优先级,数值越小优先级越高
return resolver;
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
if (!registry.hasMappingForPattern("/webjars/**")) {
registry.addResourceHandler("/webjars/**").addResourceLocations(
"classpath:/META-INF/resources/webjars/");
}
if (!registry.hasMappingForPattern("/**")) {
registry.addResourceHandler("/**")
.addResourceLocations(CLASSPATH_RESOURCE_LOCATIONS)
.addResourceLocations("file:"+my_profile);
registry.addResourceHandler("/ewebeditor/**").addResourceLocations("ewebeditor/");
}
}
}
}
- 创建测试controller
@Controller
@RequestMapping("/test/jsp/")
public class TestJspController extends BaseController
{
private String prefix = "system/config";
@Autowired
private ISysConfigService configService;
@GetMapping("/index")
public String config(Model model)
{
model.addAttribute("data","welcome jsp");
return "jsp/test";
}
@RequestMapping("/get1")
@ResponseBody
public String get() {
return "hello get1";
}
}
- 在src/main/webapp/WEB-INF/view/jsp目录下创建test.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<% request.setAttribute("base", request.getContextPath()); %>
<html>
<body>
${data}
</body>
</html>
- maven编译设置复制src/main/webapp目录下所有文件到META-INF/resources/下
不然启动时找不到文件
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.*</include>
</includes>
</resource>
<resource>
<directory>src/main/webapp</directory>
<targetPath>META-INF/resources/</targetPath>
<includes>
<include>**/*.*</include>
</includes>
<excludes>
<exclude>ewebeditor/**/*.*</exclude>
</excludes>
</resource>
</resources>
</build>
- 测试结果
http://localhost:8080/test/jsp/index
image.png
相关问题
- IDEA启动springboot项目，使用getServletContext().getRealPath()得到的是临时文件的路径，有的文件无法不会自动复制；
直接修改配置 Working directory: $MODULE_WORKING_DIR$
image.png
-
程序包不存在的问题, mvn idea:idea
image.png
3 jaxb相关jar系统找不到指定的文件
com\sun\xml\bind\jaxb-impl\2.1\jaxb-api.jar (系统找不到指定的文件。)
com\sun\xml\bind\jaxb-impl\2.1\activation.jar (系统找不到指定的文件。)
com\sun\xml\bind\jaxb-impl\2.1\jsr173_1.0_api.jar (系统找不到指定的文件。)
com\sun\xml\bind\jaxb-impl\2.1\jaxb1-impl.jar (系统找不到指定的文件。)
解决办法：
.1》在maven本地仓库中找到对应的jaxb-impl包
.2》解压出来找到META-INF/MANIFEST.MF
.3》删除里面的Class-Path: jaxb-api.jar activation.jar jsr173_1.0_api.jar jaxb1-impl.
jar这行
.4》再打包这个jar
image.png
image.png
