springmvc響應型別和放行靜態資源
阿新 • • 發佈：2020-09-15
一、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>org.example</groupId> <artifactId>A03springmvc</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>A03springmvc Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <spring.version>5.2.8.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.0</version> <scope>provided</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.12</version> <scope>provided</scope> </dependency> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.11.2</version> </dependency> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.11.2</version> </dependency> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.11.2</version> </dependency> </dependencies> <build> <finalName>A03springmvc</finalName> <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --> <plugins> <plugin> <artifactId>maven-clean-plugin</artifactId> <version>3.1.0</version> </plugin> <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --> <plugin> <artifactId>maven-resources-plugin</artifactId> <version>3.0.2</version> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.0</version> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <version>2.22.1</version> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>3.2.2</version> </plugin> <plugin> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> </plugin> </plugins> </pluginManagement> </build> </project>
二、springmvc的xml配置檔案
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--掃描元件--> <context:component-scan base-package="com.wuxi"></context:component-scan> <!--檢視解析器--> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"></property> <property name="suffix" value=".jsp"></property> </bean> <!--引數型別裝換器--> <bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean"> <property name="converters"> <set> <bean class="com.wuxi.utils.StringToDateConverter"></bean> </set> </property> </bean> <!--配置排程器不攔截靜態資源--> <mvc:resources mapping="/css/**" location="/css/"></mvc:resources> <mvc:resources mapping="/images/**" location="/images/"></mvc:resources> <mvc:resources mapping="/js/**" location="/js/"></mvc:resources> <!--開啟springmvc框架註解的支援--> <mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven> </beans>
三、controller
package com.wuxi.controllers; import com.wuxi.beans.Address; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; @Controller public class HelloController { @RequestMapping("/retString") public String retString(Model model) { model.addAttribute("name", "櫻木花道"); model.addAttribute("age", 18); // 請求轉發 return "success"; // 請求妝發 // return "forward:/WEB-INF/pages/success.jsp"; // 重定向 // return "redirect:/error.jsp"; } @RequestMapping("/retVoid") public void retVoid(HttpServletRequest req, HttpServletResponse res) { // 請求轉發 // try { // req.getRequestDispatcher("/WEB-INF/pages/success.jsp").forward(req, res); // } catch (Exception e) { // e.printStackTrace(); // } // 重定向 // try { // res.sendRedirect(req.getContextPath() + "/error.jsp"); // } catch (IOException e) { // e.printStackTrace(); // } // 設定響應內容 res.setCharacterEncoding("UTF-8"); res.setContentType("text/html;charset=UTF-8"); try { res.getWriter().write("這是一段中文"); } catch (IOException e) { e.printStackTrace(); } return; } @RequestMapping("/retModelAndView") public ModelAndView retModelAndView() { ModelAndView mv = new ModelAndView(); // 向request域儲存資料 mv.addObject("name", "流川楓"); mv.addObject("age", 19); // 設定請求轉發的頁面 mv.setViewName("success"); return mv; } @RequestMapping("/retAjax") @ResponseBody public Address retAjax(@RequestBody Address address) { address.setProvince(address.getProvince() + address.getProvince()); address.setCity(address.getCity() + address.getCity()); return address; } }
四、jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %> <html> <head> <title>springmvc</title> <script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script> <script> $(function () { $("#retAjax").click(function () { $.ajax({ url: "retAjax", type: "post", data: JSON.stringify({ province: "江蘇省", city: "無錫市" }), contentType: "application/json;charset=utf-8", dataType: "json", success: function (data) { console.log(data) } }) }) }) </script> </head> <body> <a href="retString">retString</a><br/> <a href="retVoid">retVoid</a><br/> <a href="retModelAndView">retModelAndView</a><br/> <a href="javascript:;" id="retAjax">retAjax</a><br/> </body> </html>