自己按照文档整合了ssm框架,但是跑起来发现死活进不到controller中。我自己检查了一个上午,硬是没有发现问题所在!!特来求组大佬
controller代码:
package com.bc.controller;import java.util.List;import javax.servlet.http.HttpSession;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;import com.bc.model.User;
import com.bc.service.loginService;@Controller
@RequestMapping(value="/login/")
public class loginController { //Spring自动注入
@Autowired
public loginService service;
@RequestMapping(value="st")
@ResponseBody
public String login(HttpSession session,@RequestParam(value="userName")String userName,@RequestParam(value="passWord")String passWord){
System.out.println(userName);
System.out.println(passWord);
if(userName.equals(null) || passWord.equals(null)){ //如果用户名或密码为空,则跳转到登陆界面
return "/login.jsp";
}
System.out.println(userName);
System.out.println(passWord);
List<User> list = service.login(userName,passWord);
if(list.size()==1){
session.setAttribute("user", list.get(0));//如果在数据库中查出来的只有一个对象,则在session中放入改对象
//0:表示登陆成功,1:表示登陆失败
return "0";
}else{
ModelAndView mav = new ModelAndView("1");
return "1";
}
}
}
=====================================
.jsp代码:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%
String path = request.getContextPath();
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登陆</title>
<script type="text/javascript" src="<%=path%>/js/jquery.min.js"></script>
</head>
<body>
<p>账 号<input id="userName" name="userName" type="text" /></p>
<p>密 码<input id="passWord" name="passWord" type="password" /></p>
<input type="button" name="Land" id="Land" value="登陆" onclick="Land()"/>
<input type="button" name="cancel" id="cancel" value="取消" onclick="cancel()"/>
<p id="tips" style="display: none;">账号或密码错误</p>
</body>
<script type="text/javascript">
function cancel(){
$("#userName").val("");
$("#passWord").val("");
}
function Land(){
var userName = $("#userName").val();
var passWord = $("#passWord").val();
var tips = document.getElementById("tips");
if(userName==""){
alert("账号不能为空")
}else if(passWord==""){
alert("密码不能为空")
}else{
alert(userName);
alert(passWord); $.ajax({
type:"post",
url:"<%=path%>/login/st.do",
data:{"userName":userName,"passWord":passWord},
dataType:"json",
async:true,
success:function(data){
if(data==0){
window.location.href="index.jsp"
}else{
tips.style.display = 'block';//显示提示
//tips.style.display = 'none';隐藏显示
}
},
error:function(){
}
});
}
}
</script>
</html>
==========找BUG最近进展=================
我建了个servlet,地址和controller一样。在运行的时候就不报404了,麻溜的进了servlet中。
但是为什么不进controller,而是进的servlet呢?
我是哪里配错了吗?
我需要修改哪里?
controller代码:
package com.bc.controller;import java.util.List;import javax.servlet.http.HttpSession;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;import com.bc.model.User;
import com.bc.service.loginService;@Controller
@RequestMapping(value="/login/")
public class loginController { //Spring自动注入
@Autowired
public loginService service;
@RequestMapping(value="st")
@ResponseBody
public String login(HttpSession session,@RequestParam(value="userName")String userName,@RequestParam(value="passWord")String passWord){
System.out.println(userName);
System.out.println(passWord);
if(userName.equals(null) || passWord.equals(null)){ //如果用户名或密码为空,则跳转到登陆界面
return "/login.jsp";
}
System.out.println(userName);
System.out.println(passWord);
List<User> list = service.login(userName,passWord);
if(list.size()==1){
session.setAttribute("user", list.get(0));//如果在数据库中查出来的只有一个对象,则在session中放入改对象
//0:表示登陆成功,1:表示登陆失败
return "0";
}else{
ModelAndView mav = new ModelAndView("1");
return "1";
}
}
}
=====================================
.jsp代码:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%
String path = request.getContextPath();
%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登陆</title>
<script type="text/javascript" src="<%=path%>/js/jquery.min.js"></script>
</head>
<body>
<p>账 号<input id="userName" name="userName" type="text" /></p>
<p>密 码<input id="passWord" name="passWord" type="password" /></p>
<input type="button" name="Land" id="Land" value="登陆" onclick="Land()"/>
<input type="button" name="cancel" id="cancel" value="取消" onclick="cancel()"/>
<p id="tips" style="display: none;">账号或密码错误</p>
</body>
<script type="text/javascript">
function cancel(){
$("#userName").val("");
$("#passWord").val("");
}
function Land(){
var userName = $("#userName").val();
var passWord = $("#passWord").val();
var tips = document.getElementById("tips");
if(userName==""){
alert("账号不能为空")
}else if(passWord==""){
alert("密码不能为空")
}else{
alert(userName);
alert(passWord); $.ajax({
type:"post",
url:"<%=path%>/login/st.do",
data:{"userName":userName,"passWord":passWord},
dataType:"json",
async:true,
success:function(data){
if(data==0){
window.location.href="index.jsp"
}else{
tips.style.display = 'block';//显示提示
//tips.style.display = 'none';隐藏显示
}
},
error:function(){
}
});
}
}
</script>
</html>
==========找BUG最近进展=================
我建了个servlet,地址和controller一样。在运行的时候就不报404了,麻溜的进了servlet中。
但是为什么不进controller,而是进的servlet呢?
我是哪里配错了吗?
我需要修改哪里?
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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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">
<!-- spring配置文件中添加组件扫描
扫描这个包下的所有类-->
<context:component-scan base-package="com.bc.controller.loginController"></context:component-scan>
<context:component-scan base-package="com.bc.service.loginService"></context:component-scan>
<context:component-scan base-package="com.bc.dao.LoginDao"></context:component-scan><!-- springmvc注解驱动 -->
<mvc:annotation-driven/>
</beans>
<!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>
<display-name>webTest</display-name>
<!--解决中文乱码问题 -->
<filter>
<filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping> <!-- 让web项目自动加载spring配置文件 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!-- 让web项目加载springmvc的配置文件 -->
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet> <servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bc</groupId>
<artifactId>WebTest</artifactId>
<packaging>war</packaging>
<version>1-SNAPSHOT</version>
<name>WebTest Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<!-- 设置工程字符编码集 -->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
<spring.version>4.2.4.RELEASE</spring.version>
<!-- 定义变量 -->
</properties>
<dependencies>
<!-- 单元测试Jar包 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- javaee相关依赖Jar包 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2.1-b03</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<!-- tomcat-catalina -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-catalina</artifactId>
<version>8.0.1</version>
</dependency>
<!-- mysql驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<!-- mybatis依赖jar包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.5</version>
</dependency>
<!-- 日志相关jar包 -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- 分页插件 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>4.1.4</version>
</dependency>
<!-- spring4 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<!-- spring集成jdbc的jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency> <!--springMvc的jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- springmvc自动转jSON的jar包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.6.0</version>
</dependency>
<!-- spring集成jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
<build>
<finalName>WebTest</finalName>
<plugins>
<!-- maven编译插件 设置工程jdk编译版本,默认是1.5 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
public String login(HttpSession session,@RequestParam(value="userName")String userName,@RequestParam(value="passWord")String passWord){
System.out.println(userName);
System.out.println(passWord);
if(userName.equals(null) || passWord.equals(null)){ //如果用户名或密码为空,则跳转到登陆界面
return "/login.jsp";
}
public String login(@RequestBody HttpSession session,@RequestParam(value="userName")String userName,@RequestParam(value="passWord")String passWord)public @ResponseBody login(@RequestBody HttpSession session,@RequestParam(value="userName")String userName,@RequestParam(value="passWord")String passWord)具体不清楚是不是这样子的问题,可以参考,
你单独这样测试一下。
看看页面有没有报错。
另外,你那个配置:@requestMapping(value="st.do"),最好自己加一个后缀
有人说我是spring没有引进来,光配置springmvc没用。是需要用到spring容器,还有就是spring配置我没有配。
但是我在网上找了很多配置文件对比了,也不知道该改哪里。您能帮我看吗?
麻烦您了,在这卡了好几天了,一直没有思路。
有人说我是spring没有引进来,光配置springmvc没用。是需要用到spring容器,还有就是spring配置我没有配。
但是我在网上找了很多配置文件对比了,也不知道该改哪里。您能帮我看吗?
麻烦您了,在这卡了好几天了,一直没有思路。
public class loginController {//Spring自动注入
@Autowired
public loginService service;@RequestMapping("/st") 试试
有人说我是spring没有引进来,光配置springmvc没用。是需要用到spring容器,还有就是spring配置我没有配。
但我没有思路,您能帮我介绍一下吗?
<!-- 加载配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mybatis.xml</param-value>
</context-param>
<!-- 设置spring servlet拦截器 -->
<servlet>
<servlet-name>hello</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!-- 此处一定要注意如果有springMVC的文件,则此VALUE必须存在 -->
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>hello</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- Spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止Spring内存溢出监听器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!-- 设置字符集 不添加会出现乱码 -->
<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>
对照下吧,你的WEB.xml应该有点小问题.
<mvc:default-servlet-handler />
<context:annotation-config />
<mvc:annotation-driven />
<context:component-scan base-package="com.bc.*" />
web中监听器:
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
如果是400,或者402,405,那么就是你的请求方式有问题。注意一下报错代码,我之前就错把400看成404,弄了半天发现只是请求方式不对;
你的spring配置确实没有,spring的配置的话可以百度,但是此处没有我觉得并不影响
改为
url:"login/st.do",
或者
url:"/login/st.do",
试试.
我之前也碰到过,不知道修改方法适应你的不。
我之前的原因是因为加了<%=path%>后导致请求URL在浏览器地址栏里显示"项目名/项目名/login/st.do",
正常请求应该是"项目名/login/st.do"才行。他找不到"项目名/项目名/login/st.do的bean",所以请求不上
你单独这样测试一下。
看看页面有没有报错。
另外,你那个配置:@requestMapping(value="st.do"),最好自己加一个后缀
ajax的路径改为 "${ pageContext.request.contextPath}/login/st.do"
试一下。
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath*:/spring-context.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
让其加载你classpath下的spring的配置文件,注意,我这里的spring配置文件名叫spring-context.xml,要改成你自己的;
另外,springmvc这个servlet的url-pattern建议设置为 / , 让springmvc拦截所有请求
web.xml里的
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
改成:
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
然后直接:/login/st.do?userName=admin&passWord=xmbcit 访问试试