在java web程序中要写一个app上传文件到服务器的接口该怎么做?

app上传图片过来,服务器保存在tomcat。。。有没有可以参考的例子

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你在网上搜索上传图片到服务器,很多的

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<filter-name>CORSFilter</filter-name> <filter-class>com.bls.mp.common.MyFilter</filter-class> <init-param> <param-name>excludedPages</param-name> <param-value>/UserAuthServlet</param-value> </init-param> </filter> <filter-mapping> <filter-name>CORSFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <servlet> <servlet-name>SpringMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> </web-app> ``` spring-mvc.xml: ``` <?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd" > <!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package="com.bls.mp.controller"/> <!--避免IE执行AJAX时,返回JSON出现下载文件 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <!-- <bean id="thirdDataService" class="com.bls.mp.service.impl.ThirdDataServiceImpl"/>--> <bean class="com.bls.mp.common.SpringTool"/> <!-- 启动SpringMVC的注解功能,完成请求和注解POJO的映射 --> <!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter" /> JSON转换器 </list> </property> </bean>--> <!-- 定义跳转的文件的前后缀 ,视图模式配置--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 --> <property name="prefix" value="/WEB-INF/resources/jsp/" /> <property name="suffix" value=".jsp" /> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property> </bean> <!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 默认编码 --> <property name="defaultEncoding" value="utf-8" /> <!-- 文件大小最大值 --> <property name="maxUploadSize" value="10485760000" /> <!-- 内存中的最大值 --> <property name="maxInMemorySize" value="40960" /> </bean> <!-- 全局异常处理器 --> <bean class="com.bls.mp.common.exception.CustomExceptionResolver"></bean> <mvc:annotation-driven/> <!-- 拦截器配置 --> <mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/setadmin"/> <!--<mvc:mapping path="/user/userList"/> --> <mvc:mapping path="/Blocker"/> <mvc:mapping path="/goods/goods"/> <bean class="com.bls.mp.interceptor.AuthInterceptor"></bean> </mvc:interceptor> </mvc:interceptors> <task:annotation-driven/> <!-- 配置访问静态文件 --> <mvc:default-servlet-handler/> <mvc:resources location="/images/" mapping="/images/**"/> <mvc:resources location="/WEB-INF/js/" mapping="/js/**"/> <mvc:resources location="/WEB-INF/resources/jsp/" mapping="/jsp/**"/> <mvc:resources location="/WEB-INF/resources/css/" mapping="/css/**"/> </beans> ``` spring-mybatis.xml: ``` <?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描 --> <context:component-scan base-package="com.bls.mp"/> <!-- 引入配置文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:jdbc.properties" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:com/bls/mp/mapping/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.bls.mp.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans> ``` jdk版本: 1.8.0_222 tomcat 版本:8.0 有没有大佬来给看看呀0.0
Springmvc上传文件限制大小,异常处理返回报错信息后,eclipse控制台还报错
**1、web.xml配置:** ``` <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <!-- 注册主控制器DispatcherServlet --> <servlet> <servlet-name>DispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 指定spring配置文件位置 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>*.from</url-pattern> </servlet-mapping> <!-- 指定读取所有文件的编码格式 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app> ``` **spring的applicationContext.xml配置:** ``` <?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:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"> <!-- 定义自动扫描组件 --> <context:component-scan base-package="controller"></context:component-scan> <!-- 定义@RequestMapping映射的注解驱动 --> <mvc:annotation-driven></mvc:annotation-driven> <!-- 定义视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix"> <value>/WEB-INF/jsp/</value> </property> <property name="suffix"> <value>.jsp</value> </property> </bean> <!-- 注册spring web mvc中处理上传事件的组件CommonsMultipartResolver, 而具体怎样处理上传文件,则是由导入的包common-upload.jar和common-io.jar去处理--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="10240"></property> <property name="resolveLazily" value="true"></property> </bean> </beans> ``` **java代码Controller处理:** ``` package controller; import java.io.File; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.multipart.MaxUploadSizeExceededException; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.servlet.ModelAndView; @Controller public class UploadController { // 访问upload.jsp页面 @RequestMapping("/toUpload") public String toUpload() { return "upload"; } @RequestMapping("/upload") public String upload(@RequestParam("file") MultipartFile file, HttpServletRequest request, ModelMap model) throws Exception { // 判断提交来的文件是否为空 if (file.isEmpty()) { // model.addAttribute("error", "上传文件不能为空"); // return "upload"; throw new RuntimeException("file is null"); } // 获取文件所要保存目录在服务器上所对应的实际路径 String path = request.getSession().getServletContext().getRealPath( "upload"); System.out.println(path); // 组成拥有真实路径的一个完整的地址字符串 String fileUrl = path + "\\" + file.getOriginalFilename(); // 封装上传文件名称到model对象中 model.addAttribute("fileName", file.getOriginalFilename()); // 根据这个完整地址字符串,生成提交文件所要保存到的目标文件或目录的对象 File targetFile = new File(fileUrl); // 判断目标文件或目录的对象是否已经存在 if (!targetFile.exists()) { targetFile.mkdirs(); } // 传送文件到目标对象 file.transferTo(targetFile); System.out.println("已上传文件:" + file); return "ok"; } @ExceptionHandler public ModelAndView doException(Exception e,HttpServletRequest request) throws Exception { Map<String,Object> map = new HashMap<String,Object>(); if (e instanceof MaxUploadSizeExceededException) { long maxSize = ((MaxUploadSizeExceededException) e) .getMaxUploadSize(); map.put("error", "上传文件太大,不能超过" + maxSize / 1024 + "k"); }else if(e instanceof RuntimeException){ map.put("error", "未选中文件"); }else{ map.put("error", "上传失败"); } return new ModelAndView("upload",map); } } ``` **上传文件页面upload.jsp:** ``` <%@ page pageEncoding="UTF-8" contentType="text/html;charset=UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>上传页面</title> </head> <body> <form action="upload.from" method="post" enctype="multipart/form-data"> <input type="file" name="file"/> <input type="submit" value="上传"/><font color="red">${error}</font> </form> </body> </html> ``` **上传成功页面ok.jsp:** ``` <%@ page pageEncoding="UTF-8" contentType="text/html;charset=UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>ok.jsp</title> </head> <body> <h1>上传成功</h1> <a href="upload/${fileName}">${fileName}</a> </body> </html> ``` **eclipse控制台报错信息如下:** ``` 五月 01, 2015 10:27:01 下午 org.springframework.web.multipart.commons.CommonsMultipartResolver cleanupMultipart 警告: Failed to perform multipart cleanup for servlet request org.springframework.web.multipart.MaxUploadSizeExceededException: Maximum upload size of 10240 bytes exceeded; nested exception is org.apache.commons.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (19243) exceeds the configured maximum (10240) at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:160) at org.springframework.web.multipart.commons.CommonsMultipartResolver$1.initializeMultipart(CommonsMultipartResolver.java:131) at org.springframework.web.multipart.support.AbstractMultipartHttpServletRequest.getMultipartFiles(AbstractMultipartHttpServletRequest.java:119) at org.springframework.web.multipart.support.AbstractMultipartHttpServletRequest.getMultiFileMap(AbstractMultipartHttpServletRequest.java:99) at org.springframework.web.multipart.commons.CommonsMultipartResolver.cleanupMultipart(CommonsMultipartResolver.java:188) at org.springframework.web.servlet.DispatcherServlet.cleanupMultipart(DispatcherServlet.java:1062) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855) at javax.servlet.http.HttpServlet.service(HttpServlet.java:650) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2476) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2465) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.commons.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (19243) exceeds the configured maximum (10240) at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:914) at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:331) at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:349) at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126) at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:156) ... 37 more ``` 上传文件超过限制大小,异常处理后页面返回了提示信息“上传文件太大,不能超过10k”,但是为啥eclipse的控制台还是有报错呢?
java 异常java.net.UnknownHostException
package app21; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.PrintWriter; import java.net.Socket; public class SocketTest1 { public static void main(String[] args) { String host = "www.baidu.com"; String protocol = "https"; try { Socket socket = new Socket(protocol + "://" + host, 80); OutputStream os = socket.getOutputStream(); boolean autoflush = true; PrintWriter out = new PrintWriter(os, autoflush); BufferedReader in = new BufferedReader( new InputStreamReader(socket.getInputStream())); // 将一个HTTP请求发送到Web服务器 out.println("GET / HTTP/1.1"); out.println("Host: " + host + ":80"); out.println("Connection: Close"); out.println(); // 读取响应信息 boolean loop = true; StringBuilder sb = new StringBuilder(8096); while (loop) { if (in.ready()) { int i = 0; while (i != -1) { i = in.read(); sb.append((char) i); } loop = false; } } // 将响应信息显示到out控制台 System.out.println(sb.toString()); socket.close(); } catch (IOException e) { e.printStackTrace(); } } } 异常信息: java.net.UnknownHostException: https://www.baidu.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at java.net.Socket.connect(Socket.java:538) at java.net.Socket.<init>(Socket.java:434) at java.net.Socket.<init>(Socket.java:211) at app21.SocketTest1.main(SocketTest1.java:16)
两个GlassFish4.0服务器之间的远程EJB调用
两台服务器在不同的机器上,环境为jdk8,javaee7. 当我在一台服务器A上调用服务器B的时候,如果在普通的java main方法中调用 : InitialContext ctx = new InitialContext(); ctx.lookup("corbaname:iiop:192.168.0.210:3700#java:global/RemoteEjb/SayHelloService!rm.SayHelloServiceRemote"); Properties props = new Properties(); props.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory"); props.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming"); props.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl"); // 远程主机名 props.setProperty("org.omg.CORBA.ORBInitialHost", "192.168.1.210"); // 远程主机的缺省端口号 props.setProperty("org.omg.CORBA.ORBInitialPort", "3700"); // 创建远程上下文 InitialContext ctx = new InitialContext(props); // 查找EJB,其中查找的参数为远程接口类 System.out.println("k开始连接....................."); SayHelloServiceRemote testRmi = (SayHelloServiceRemote) ctx.lookup("java:global/RemoteEjb/SayHelloService"); testRmi.say(); System.out.println("k开始连接....................."); 这样总是会调用成功. 但是如果在javaee环境中,比如说servlet或者JSF的托管Bean中总是会出现各种错误,以下是我尝试的几种方法与对应的错误: 1.`采用glssfish的配置文件,并在托管bean中调(此处没有对JNDI名字做详细的记录,有误差,但是在实际测试的时候肯定是正确的)用:ctx.lookup("java:global/RemoteEJBName") <glassfish-web-app error-url=""> <ejb-ref> <ejb-ref-name>RemoteEJBName</ejb-ref-name> <jndi-name>corbaname:iiop:<servername or IP>:3700#java:global/<projectname>/FooClassImpl!com.test.foo.FooClass</jndi-name> </ejb-ref> </glassfish-web-app> ` 这种总是会报找不到JNDI之类的错误. 2.在托管Bean中类似在main方法中调用的一样. error:avax.naming.CommunicationException: Communication exception for SerialContext[myEnv={org.omg.CORBA.ORBInitialPort=3700, java.naming.factory.initial=com.sun.enterprise.naming.SerialInitContextFactory, org.omg.CORBA.ORBInitialHost=192.168.1.104, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is java.rmi.RemoteException: CORBA INITIALIZE 0 No; nested exception is: .希望有人能指点一下,在两个glssFish服务器之间进行远程调用的具体细节.先谢过了..
在intellij中创建的webapp无法访问到注解的servlet,但是能访问到index.jsp和使用web.xml配置的servlet。
目前的尝试,写两个servlet类,一个使用注解,另一个使用web.xml的配置方式,注解方式的不能被访问,但是index.jsp能访问。 分别是两个servlet的代码 ``` import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; public class HelloServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { resp.getWriter().write("you are bad"); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doGet(req,resp); } } ``` ``` import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; @WebServlet(name = "Servlet",urlPatterns="/Servlet") public class Servlet extends HttpServlet { protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request,response); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.getWriter().write("you are bad"); } } ``` web.xml的配置 ``` <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1" metadata-complete="true"> <servlet> <servlet-name>hello</servlet-name> <servlet-class>com.alibaba.HelloServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>hello</servlet-name> <url-pattern>/hello</url-pattern> </servlet-mapping> </web-app> ``` tomcat服务器的配置 ![图片说明](https://img-ask.csdn.net/upload/201905/20/1558364717_657152.png) 测试的结果 ![图片说明](https://img-ask.csdn.net/upload/201905/20/1558365162_377682.png) ![图片说明](https://img-ask.csdn.net/upload/201905/20/1558365180_109564.png) ![图片说明](https://img-ask.csdn.net/upload/201905/20/1558365207_783250.png) 测试这样改 metadata-complete="false" 但是还是不行。
window7下搭建一个Nginx服务器 需要哪些安装环境 并做什么样的配置 急等!
需要搭建一个web app测试服务器,要求能处理高并发。最好可以配置一个域名服务测试一下。
tomcat对javaweb项目中的web.xml解析顺序是怎样的
我的web.xml文件内容如下: <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>ssh_crm</display-name> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 配置监听器 --> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置指定配置文件路径 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:bean.xml</param-value> </context-param> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> </web-app> ``` ``` 这样的话,tomcat启动没有任何问题。然而,如果把<display-name>ssh_crm</display-name>放到</context-param>的后面,有时候启动服务器会报解析xml的错误。 然后还想问一下,这些标签对于现在的tomcat版本还有顺序要求吗,如果有,怎样的顺序 拜托了
weblogic9.2部署文件
系统要升级从6.1升到9.2 项目文件 project 所有jsp文件 WEB-INF classes文件 lib文件 web.xml 原来6.1的时候是把上面的2个文件夹放在DefaultWebApp下.直接用http://localhost:7001/project/***.jsp可以访问 现在使用9.1我把上面2个文件夹放在一个web文件夹内再部署.需要http://localhost:7001/web/project/***0jsp才能访问.这样的话所有的提交请求都不能提交,因为多了一个web... 我想问的是,如何使用9.2部署一个像6.1那样的直接使用系统名称的服务.. 没玩过9.2,所以请大家帮忙,比较赶时间.. [b]问题补充:[/b] 正常情况下的项目路径是 project JSP文件 web-inf web.xml classes文件 部署到任何一个服务器的时候 都是访问http://localhost/project/***.jsp就OK 我这个项目与其他项目的区别就在于 项目和web-inf在同一个路径下(不去考虑为什么会这样) 所以我感到为难的就是,如何部署,能让weblogic9.2直接访问project下的JSP而不需要在上面再加一个项目名称 [b]问题补充:[/b] 是不是在web-inf 下加个weblogic.xml(这是8.1版本) [quote] <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE weblogic-web-app PUBLIC "-//BEA Systems, Inc.//DTD Web Application 8.1//EN" "http://www.bea.com/servers/wls810/dtd/weblogic810-web-jar.dtd"> <weblogic-web-app> <context-root>/</context-root> </weblogic-web-app> [/quote] 部署的时候要怎么部署,我部署是通过控制台 部署-安装-选择路径-然后选中相应的包,貌似只能选择到project的上一层目录 现在是 web project web-inf 选到web的时候就选不下去了.. [b]问题补充:[/b] weblogic的头文件 [code="java"] <!DOCTYPE weblogic-web-app PUBLIC "-//BEA Systems, Inc.//DTD Web Application 8.1//EN" "http://www.bea.com/servers/wls810/dtd/weblogic810-web-jar.dtd"> [/code] 去哪找标准的..我去bea网站上转了一圈,不知道去哪下 [code="java"] <2009-1-8 下午03时20分37秒 CST> <Warning> <J2EE Deployment SPI> <BEA-260128> <Ch anges not allowed to DTD based descriptors. The attempt to modify property 'Serv letName' in WEB-INF/weblogic.xml for module 'web' will be vetoed if possible. Th e change will not be persisted in either case.> [/code] 这个错误应该是描述出问题了... [b]问题补充:[/b] 我一直在console上试,但是没找到是在哪设置这东西.. [b]问题补充:[/b] [code="java"]谢谢, 其实就是weblogic.xml文件描述我写错了 <?xml version='1.0' encoding='UTF-8'?> <weblogic-web-app xmlns="http://www.bea.com/ns/weblogic/90" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd http://www.bea.com/ns/weblogic/90 http://www.bea.com/ns/weblogic/90/weblogic-web-app.xsd"> <context-root>/</context-root> </weblogic-web-app> [/code] 这样就可以了
ssm 框架,在本地环境下完美运行,在服务器上定时器执行两次
## 此处为 spring-mybatis.xml ``` <?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd"> <!-- 自动扫描 --> <!-- 激活自动代理功能 --> <!-- 引入配置文件 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:com/bls/mp/mapping/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.bls.mp.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans> ``` ## 此处为 spring-mvc.xml ``` <?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd" > <!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package="com.bls.mp.*"/> <!--避免IE执行AJAX时,返回JSON出现下载文件 --> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <!-- <bean id="thirdDataService" class="com.bls.mp.service.impl.ThirdDataServiceImpl"/>--> <bean class="com.bls.mp.common.SpringTool"/> <!-- 启动SpringMVC的注解功能,完成请求和注解POJO的映射 --> <!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter" /> JSON转换器 </list> </property> </bean>--> <!-- 定义跳转的文件的前后缀 ,视图模式配置--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 --> <property name="prefix" value="/WEB-INF/resources/jsp/" /> <property name="suffix" value=".jsp" /> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property> </bean> <!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 默认编码 --> <property name="defaultEncoding" value="utf-8" /> <!-- 文件大小最大值 --> <property name="maxUploadSize" value="10485760000" /> <!-- 内存中的最大值 --> <property name="maxInMemorySize" value="40960" /> </bean> <!-- 全局异常处理器 --> <bean class="com.bls.mp.common.exception.CustomExceptionResolver"></bean> <mvc:annotation-driven/> <!-- 拦截器配置 --> <mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/setadmin"/> <!--<mvc:mapping path="/user/userList"/> --> <mvc:mapping path="/Blocker"/> <mvc:mapping path="/grouponteam/grouponRanking"/> <mvc:mapping path="/grouponteam/arriverTime"/> <mvc:mapping path="/grouponteam/paging"/> <mvc:mapping path="/grouponteam/conditionGrouponT"/> <mvc:mapping path="/hospital/hospitalInfo"/> <mvc:mapping path="/hospital/setting"/> <mvc:mapping path="/hospital/orderdetails"/> <mvc:mapping path="/grouponteam/grouponTeamCountAndMoney"/> <mvc:mapping path="/grouponteam/OrderRefundList"/> <mvc:mapping path="/grouponteam/orderdetails"/> <mvc:mapping path="/grouponteam/paging"/> <mvc:mapping path="/grouponteam/conditionGrouponT"/> <mvc:mapping path="/grouponteam/grouponRanking"/> <mvc:mapping path="/grouponteam/arriverTime"/> <mvc:mapping path="/grouponteam/grouponTeamCountAndMoney"/> <mvc:mapping path="/imguoload"/> <mvc:mapping path="/imguoloads"/> <mvc:mapping path="/uploadFile"/> <mvc:mapping path="/uploadCenter"/> <mvc:mapping path="/onTheShelves"/> <mvc:mapping path="/updateTheRecommended"/> <mvc:mapping path="/deleteByGoods"/> <mvc:mapping path="/restoreGoods"/> <mvc:mapping path="/goods/goodslist"/> <mvc:mapping path="/goods/hasBeenOn"/> <mvc:mapping path="/goods/NotOn"/> <mvc:mapping path="/goods/RecycleBin"/> <mvc:mapping path="/goods/searchName"/> <mvc:mapping path="/goods/goodsdiy"/> <mvc:mapping path="/upload/uploadFile"/> <mvc:mapping path="/CreateClassImg"/> <mvc:mapping path="/imglist"/> <mvc:mapping path="/up_img"/> <mvc:mapping path="/moveImg"/> <mvc:mapping path="/deleteImg"/> <mvc:mapping path="/template/templateURL"/> <mvc:mapping path="/template/templateParentAll"/> <mvc:mapping path="/template/templatAll"/> <mvc:mapping path="/template/changeT"/> <mvc:mapping path="/template/deleteT"/> <mvc:mapping path="/TemplateMsg/addTemplateMsg"/> <mvc:mapping path="/TemplateMsg/templateMsgList"/> <mvc:mapping path="/TemplateMsg/templateSendlist"/> <mvc:mapping path="/TemplateMsg/TemplateSendMsg"/> <mvc:mapping path="/TemplateMsg/updataPTID"/> <mvc:mapping path="/TemplateMsg/deleteMB"/> <mvc:mapping path="/ThirdData/getdata"/> <mvc:mapping path="/ThirdData/updata"/> <mvc:mapping path="/setMoney/setMoneyList"/> <mvc:mapping path="/setMoney/setArriveMoney"/> <mvc:mapping path="/setMoney/checkfileCert"/> <mvc:mapping path="/setMoney/SetMoneyType"/> <mvc:mapping path="/user/userlists"/> <mvc:mapping path="/user/uOpenId"/> <mvc:mapping path="/visitor/theAlmostMoon"/> <mvc:mapping path="/visitor/SixAlmostMoon"/> <mvc:mapping path="/visitor/tops"/> <mvc:mapping path="/weixin/REFUND"/> <bean class="com.bls.mp.interceptor.AuthInterceptor"></bean> </mvc:interceptor> </mvc:interceptors> <task:annotation-driven/> <!-- 配置访问静态文件 --> <mvc:default-servlet-handler/> <mvc:resources location="/images/" mapping="/images/**"/> <mvc:resources location="/WEB-INF/js/" mapping="/js/**"/> <mvc:resources location="/WEB-INF/resources/jsp/" mapping="/jsp/**"/> <mvc:resources location="/WEB-INF/resources/css/" mapping="/css/**"/> </beans> ``` ## 此处为web.xml ``` <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <display-name>Archetype Created Web Application</display-name> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-redis.xml,classpath:spring-mybatis.xml</param-value> </context-param> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>CORSFilter</filter-name> <filter-class>com.bls.mp.common.MyFilter</filter-class> <init-param> <param-name>excludedPages</param-name> <param-value>/UserAuthServlet</param-value> </init-param> </filter> <filter-mapping> <filter-name>CORSFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <servlet> <servlet-name>SpringMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> </web-app> ``` ## 此处为tomcat 配置 ``` <Server port="8005" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.startup.VersionLoggerListener" /> <Listener SSLEngine="on" className="org.apache.catalina.core.AprLifecycleListener" /> <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" /> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" /> <GlobalNamingResources> <Resource auth="Container" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" name="UserDatabase" pathname="conf/tomcat-users.xml" type="org.apache.catalina.UserDatabase" /> </GlobalNamingResources> <Service name="Catalina"> <Connector connectionTimeout="20000" maxPostSize="0" port="8080" protocol="HTTP/1.1" redirectPort="8443" /> <Connector maxPostSize="0" port="8009" protocol="AJP/1.3" redirectPort="8443" /> <Engine defaultHost="localhost" name="Catalina"> <Realm className="org.apache.catalina.realm.LockOutRealm"> <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase" /> </Realm> <Host autoDeploy="true" name="yuming.cn" appBase="" unpackWARs="true" xmlNamespaceAware="false" xmlValidation="false"> <Context crossContext="true" docBase="/www/server/tomcat/webapps/xiangmu" path="" reloadable="true" /> </Host> </Engine> </Service> </Server> ``` ## spring-radis.xml ``` <?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:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <context:property-placeholder location="classpath:*.properties"/> <!--设置数据池--> <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig"> <property name="maxIdle" value="${redis.maxIdle}"></property> <property name="minIdle" value="${redis.minIdle}"></property> <property name="maxTotal" value="${redis.maxTotal}"></property> <property name="maxWaitMillis" value="${redis.maxWaitMillis}"></property> <property name="testOnBorrow" value="${redis.testOnBorrow}"></property> </bean> <!--链接redis--> <bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"> <property name="hostName" value="${redis.host}"></property> <property name="port" value="${redis.port}"></property> <property name="password" value="${redis.password}"></property> <property name="poolConfig" ref="poolConfig"></property> </bean> <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate" p:connection-factory-ref="connectionFactory" > <!--以下针对各种数据进行序列化方式的选择--> <property name="keySerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" /> </property> <property name="valueSerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" /> </property> <property name="hashKeySerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" /> </property> <!--<property name="hashValueSerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" /> </property>--> </bean> </beans> ```
关于用java开发微信公众平台开发 token验证失败的问题
大家好,最近在学习用java开发微信公众平台,第一次写的代码token验证通过了,用的是阿里云的服务器换系统(server2008->2003)后就怎么也通过不过验证。直接输入域名www.zhenggufang.com/aip/longin网页显示404.域名也已经备过案。服务器上的tomcat也启动正常tomcat/conf/server也修改了。多谢提交还是token验证失败。请各位帮忙看看代码如下: package service; import java.io.IOException; import java.io.PrintWriter; import java.util.Date; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import message.resp.TextMessage; import util.ValidationUtil; public class LoginServlet extends HttpServlet{ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println(get 请求); String signature = request.getParameter(signature); String timestamp = request.getParameter(timestamp); String nonce= request.getParameter(nonce); String echostr=request.getParameter(echostr); PrintWriter out=response.getWriter(); System.out.println(signature+ signature); System.out.println(timestamp+ timestamp); System.out.println(nonce+ nonce); System.out.println(echostr+ echostr); 验证请求确认成功原样返回echostr参数内容,则接入生效,成为开发者成功,否则 if(ValidationUtil.chechSignature(signature, timestamp, nonce)) { out.print(echostr); } out.close(); } 接受微信服务器发过来的xml数据包(通过post)形式发过来的 @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String respXml=;响应的xml串 request.setCharacterEncoding(utf-8); response.setCharacterEncoding(utf-8); String signature = request.getParameter(signature); String timestamp = request.getParameter(timestamp); String nonce= request.getParameter(nonce); PrintWriter out=response.getWriter(); if(ValidationUtil.chechSignature(signature, timestamp, nonce)) { 接收并解析来自用户的xml数据包中的内容 MapString,String reqMap=MessageUtil.parseXml(request); String ToUserName=reqMap.get(ToUserName); String FromUserName=reqMap.get(FromUserName); String MsgType=reqMap.get(MsgType); String Content=reqMap.get(Content); System.out.println(用户给公众号发的消息+Content); 开始响应消息给用户 String respContent=;要响应的文本内容 构建一条文本消息 TextMessage textMsg=new TextMessage(); textMsg.setFromUserName(FromUserName); textMsg.setFromUserName(ToUserName); textMsg.setCreateTime(new Date().getTime()); textMsg.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_TEXT); if(MsgType.equals(MessageUtil.RESP_MESSAGE_TYPE_TEXT)) { respContent=大家好,来自工作公众平台的测试消息!!; } textMsg.setContent(respContent); respXml=MessageUtil.messageToXml(textMsg); System.out.println(respXml+respXml); 接受打印的字符 out.println(respXml); } out.close(); out=null; } } package util; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.Arrays; /** * 微信请求校验工具类 * @author y * */ public class ValidationUtil { private static String token="wlghr0479"; public static boolean chechSignature(String signature,String timestamp,String nonce) { //1.将token,timestamp,nonce三个参数排序 String[] str= new String[]{token,timestamp,nonce}; Arrays.sort(str); //2.将三个参数字符串接成一个字符串 StringBuilder buff=new StringBuilder(); for (int i=0;i<str.length;i++) { buff.append(str[i]); } //3.进行sha1加密 MessageDigest md=null; String result=""; try { md= MessageDigest.getInstance("SHA-1"); byte[]date =md.digest(buff.toString().getBytes()); //将字节数组转换成字符串 result=bytesToStr(date); System.out.println("加密后的"+result); } catch (NoSuchAlgorithmException e) { // TODO Auto-generated catch block e.printStackTrace(); } return result!=null ?(result.equals(signature.toUpperCase())) :false; } //将直接数组转换成十六进制字符串 private static String bytesToStr(byte[] byteArray) { String strDigest=""; for (int i=0;i<byteArray.length;i++) { strDigest += byteToHexStr(byteArray[i]); } return strDigest; } //将一个字节转换成16进制字符串 private static String byteToHexStr(byte mByte) { char[]Digit ={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'}; char[]temp1=new char[2]; temp1[0]=Digit[mByte>>>4 & 0X0F]; temp1[1]=Digit[mByte & 0X0F]; String str=new String(temp1); return str; } } <?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <!-- 部署配置 --> <servlet> <servlet-name>LoginServlet</servlet-name> <servlet-class>service.LoginServlet</servlet-class> </servlet> <!-- 配置映射 --> <servlet-mapping> <servlet-name>LoginServlet</servlet-name> <url-pattern>/api/login</url-pattern> </servlet-mapping> <display-name></display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
在weblogic中怎么访问web-inf下的info.txt
操作系统是liunx,应用服务器是weblogic10.2.3.1 我在web-inf目录下有一个info.txt配置文件,把web程序打成war包放在weblogic服务器中,在访问中却不能找到这个目录? info.txt如下:/login.do=com.ouruan.mvctemplate.service.LoginService public class ServletAction extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //设置字符编码 response.setContentType("text/html charset=utf-8"); //获取请求路径 String path = request.getServletPath(); System.out.println(path); //获取配置文件info.txt的全路径 String filePath = this.getServletContext().getRealPath("WEB-INF"+File.separator+"info.properties"); System.out.println(filePath); // String webName = request.getContextPath(); //// 协议名称+服务器地址+端口号+web应用的名称 // String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+webName+ // File.separator+"WEB-INF"+File.separator+"info.properties"; // System.out.println(basePath); ServicesFactory factory = new ServicesFactory(filePath); 如果 这里用filePath会抛出异常: emplate.war path:/mvctemplate spec-version:2.5]] Servlet failed with Exception java.lang.NullPointerException at java.io.FileInputStream.<init>(FileInputStream.java:103) at java.io.FileInputStream.<init>(FileInputStream.java:66) at com.ouruan.mvctemplate.util.ServicesFactory.<init>(ServicesFactory.java:25) at com.ouruan.mvctemplate.control.ServletAction.doPost(ServletAction.java:35) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) Truncated. see log file for complete stacktrace > 如果用basePath会抛出异常: <2010-1-5 下午11时38分49秒 CST> <Error> <HTTP> <BEA-101020> <[ServletContext@10055979[app:_appsdir_mvctemplate_war module:mvctemplate.war path:/mvctemplate spec-version:2.5]] Servlet failed with Exception java.lang.NullPointerException at java.io.FileInputStream.<init>(FileInputStream.java:103) at java.io.FileInputStream.<init>(FileInputStream.java:66) at com.ouruan.mvctemplate.util.ServicesFactory.<init>(ServicesFactory.java:25) at com.ouruan.mvctemplate.control.ServletAction.doPost(ServletAction.java:35) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) Truncated. see log file for complete stacktrace > /login.do http://localhost:7001/mvctemplate/info.properties java.io.FileNotFoundException: http:/localhost:7001/mvctemplate/info.properties (No such file or directory) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(FileInputStream.java:106) at java.io.FileInputStream.<init>(FileInputStream.java:66) at com.ouruan.mvctemplate.util.ServicesFactory.<init>(ServicesFactory.java:25) at com.ouruan.mvctemplate.control.ServletAction.doPost(ServletAction.java:35) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3594) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121) at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2202) at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2108) at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1432) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) at weblogic.work.ExecuteThread.run(ExecuteThread.java:173) key--/login.do className--null java.lang.NullPointerException at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:169) at com.ouruan.mvctemplate.util.ServicesFactory.getInfo(ServicesFactory.java:47) at com.ouruan.mvctemplate.control.ServletAction.doPost(ServletAction.java:38) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3594) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121) at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2202) at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2108) at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1432) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) at weblogic.work.ExecuteThread.run(ExecuteThread.java:173) try { InterService service = factory.getInfo(path); String forwardpath = service.getService(request, response); request.getRequestDispatcher(forwardpath).forward(request, response); } catch (Exception e) { e.printStackTrace(); } } } 请问这个问题怎么解决
服务器启动失败,貌似是扫描的问题 但是我点击扫描能跳转过去...
我使用的是idea 点扫描能直接点过去 但是就是一直报错 错误信息是 ``` 2019-06-04 15:49:15,232 1700 [on(4)-127.0.0.1] ERROR work.web.context.ContextLoader - Context initialization failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'accuserServiceImpl': Unsatisfied dependency expressed through field 'accuserDao'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.ssmmaven.dao.IAccuserDao' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:372) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1344) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:758) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:409) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:291) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4643) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5109) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:742) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:718) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:703) at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1737) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357) at sun.rmi.transport.Transport$1.run(Transport.java:200) at sun.rmi.transport.Transport$1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.ssmmaven.dao.IAccuserDao' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1504) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583) ... 60 more ``` IAccessDao ``` package com.ssmmaven.dao; import com.ssmmaven.domain.Accuser; import org.apache.ibatis.annotations.Select; import org.springframework.stereotype.Repository; import java.util.List; @Repository public interface IAccuserDao { @Select("select * from accuser") public List<Accuser> findall(); } ``` AccuserServiceImpl ``` package com.ssmmaven.service.impl; import com.ssmmaven.dao.IAccuserDao; import com.ssmmaven.domain.Accuser; import com.ssmmaven.service.IAccuserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.List; @Service @Transactional public class AccuserServiceImpl implements IAccuserService { @Autowired private IAccuserDao accuserDao; public List<Accuser> findall() { System.out.println("service-findall"); return null; } } ``` AccuserController ``` package com.ssmmaven.controller; import com.ssmmaven.service.IAccuserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("/accuser") public class AccuserController { @Autowired private IAccuserService AccuserService; @RequestMapping("/findall") public String findall(){ System.out.println("controller-findall"); AccuserService.findall(); return "success"; } } ``` spring.xml ``` <?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"> <!--开启注解扫描,希望处理service,dao controller不需要扫描--> <context:component-scan base-package="com.ssmmaven"> <!--配置不需要扫描的配置--> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!--spring整合mybatis--> <!--配置连接池--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="com.mysql.cj.jdbc.Driver"/> <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=utf-8&amp;serverTimezone=GMT%2B8"/> <property name="user" value="root"/> <property name="password" value="root"/> </bean> <!--配置sqlsessionfactory工厂--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> </bean> <!--spring 声明式事务管理--> <!--配置事务管理器--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!--配置事务通知--> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <!--find* 的方法只读事务--> <tx:method name="find*" read-only="true"/> <!--除了find* 方法正常执行事务--> <tx:method name="*"/> </tx:attributes> </tx:advice> <!--配置aop增强--> <aop:config> <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.ssmmaven.service.impl.*ServiceImpl.*(..))"/> </aop:config> </beans> ``` spring_mvc.xml ``` <?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 http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--开启注解扫描,只扫描controller--> <context:component-scan base-package="com.ssmmaven"> <!--配置只扫描的配置--> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!--配置视图解析器--> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!--配置jsp位置--> <property name="prefix" value="/pages/"/> <!--配置文件后缀名--> <property name="suffix" value=".jsp"/> </bean> <!--设置静态文件不过滤--> <mvc:resources mapping="/css/**" location="/css/"/> <mvc:resources mapping="/img/**" location="/img/"/> <mvc:resources mapping="/js/**" location="/js/"/> <mvc:resources mapping="/plugins/**" location="/plugins/"/> <!--开启springmvc注解--> <mvc:annotation-driven/> </beans> ``` web.xml ``` <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <!--配置Spring的监听器,默认只加载WEB-INF目录下面的applicationContext.xml配置文件 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </context-param> <!--前端控制器--> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--加载springmvc.xml配置文件--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring_mvc.xml</param-value> </init-param> <!--启动服务器,创建servlet--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--解决中文乱码问题--> <filter> <filter-name>characterEncodingFilter</filter-name> 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