[深圳|结业弟子]PM-韩小何|2018年02月06日的日报-技能树.IT修真院

发表于： 2018-02-06 23:51:54

1 618

今天在网页上输入数据，qq和major都没有问题，但是名字的汉字总是乱码

解决次序是：1.在tomcat里面加入红色的那句话

<Connector port="8080" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443"

useBodyEncodingForURI="true" URIEncoding="UTF-8" />

用的是notepad++，如果用记事本，容易出问题。见图

2.依然是乱码，

<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>
<init-param>
    <param-name>forceEncoding</param-name>
    <param-value>true</param-value>
</init-param>

把web.xml里面如上一坨放在一排网址下面，因为次序会影响

再次在网页里加入数据，汉字可以识别了。

但是网页删除又删除不了了，很奇怪。

三。修改控制器：

@Controller
@RequestMapping("/student")
public class StudentController {
    private static final Logger log = LoggerFactory.getLogger(StudentController.class);

    @Autowired
    private StudentService studentService;

    @RequestMapping("toAddStudent")
    public String toAddStudent(){
        return "addStudent";
    }

    @RequestMapping("addStudent")
    public String addStudent(Model model,Student student){
        log.info("addStudent student :{}", student);
        System.out.println(""+student);
        if(student != null){
            studentService.saveStudent(student);
        }
        return "redirect:/student/getAllStudent";
        }

        @RequestMapping("toEditStudent")
    public String toUpdateStudent(){ 
        return "editStudent";
    }

    @RequestMapping("updateStudent")
    public String UpdateStudent(Model model,Student student) {
        if (studentService.updateStudent(student)) {
            student = studentService.findStudentById(student.getId());
            model.addAttribute("student", student);
            return "redirect:/student/getAllStudent";
        }
        return "/error";
    }
    @RequestMapping("getAllStudent")
    public String getAllStudent(Model model){

        List<Student> students = studentService.findAll();
        model.addAttribute("studentList", students);
        return "allStudent";
    }
    @RequestMapping("/getStudent")
    public String getStudent(int id,Model model){
        model.addAttribute("student",studentService.findStudentById(id));
        return "editStudent";
    }
    @RequestMapping("/delStudent/{id}")
    public String deleteStudent(@PathVariable int id,Model model){
        studentService.deleteStudent(id);
        return "redirect:/student/getAllStudent";
    }

点击进入：

查，删除，跳转页面，增加，都成功了，就差一个改了。

改的editStudent.jsp文件是：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>
<html>
<title>编辑用户</title>
</head>
<body>
<h1>编辑用户</h1>
<form action="" name="studentForm">
    姓名：<input type="text" name="name"><br>
    QQ：<input type="text" name="qq"><br>
    主修：<input type="text" name="major"><br>
    <input type="button" value="编辑"
           onclick="updateStudent()">
</form>
<script type="text/javascript">
    function updateStudent() {
        var form = document.forms[0];
        form.action = "<%=basePath %>student/updateStudent";
        form.method = "post";
        form.submit();
    }
</script>
</body>
</html>

updateStudent.jsp文件是：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>
<!DOCTYPE html>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<head>
    <title>编辑用户</title>
 <script type="text/javascript">
        function updateStudent() {
            var form = document.forms[0];
            form.action = "<%=basePath %>student/updateStudent";
            form.method = "post";
            form.submit();
        }
    </script>
</head>
<body>
<h1>添加用户</h1>
<form action="" name="studentForm">
    <input type="hidden" name="id" value="${student.id }" /> 姓名：<input
        type="text" name="name" value="${student.name }" /> QQ：<input
        type="text" name="qq" value="${student.qq }" /> 主修：<input
        type="text" name="major" value="${student.major }" /> <input type="button"
                                                                     value="编辑" onclick="updateStudent()" />
</form>
</body>
</html>