SSM46：Get和post發送請求資料

GET請求中文亂碼

如果我們傳遞的參數中有中文，你會發現接收到的參數會出現中文亂碼問題。

發送請求:

http://localhost/commonParam?name=張三&age=1

出現亂碼的原因相信大家都清楚，Tomcat8.5以後的版本已經處理了中文亂碼的問題，但是IDEA中的Tomcat插件目前隻到Tomcat7，是以需要修改pom.xml來解決GET請求中文亂碼問題

POST發送參數請求中文亂碼

發送請求與參數:

接收參數：

和GET一緻，不用做任何修改

發送方式;

解決中文亂碼方案:配置過濾器

建立SpringMVC項目

 目錄

補全目錄結構 ：添加java項結構

導入jar包

将pom.xml中多餘的内容删除掉，再添加SpringMVC需要的依賴

<?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>com.itheima</groupId>
  <artifactId>SpringMVC</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>SpringMVC 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>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.2.1.RELEASE</version>
    </dependency>
  </dependencies>
<!--導入插件-->
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <version>2.1</version>
        <configuration>
          <port>80</port>
          <path>/</path>
        </configuration>
      </plugin>
    </plugins>
  </build>

</project>
           

添加tomcat運作快捷鍵

建立配置類 SpringMvcConfig.class

package com.itheima.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

@Configuration
@ComponentScan("com.itheima.controller")
public class SpringmvcConfig {
}
           

建立Controller類

package com.itheima.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

//@Controller：Springmvc的bean标志
@Controller
//@RequestMapping("/user")
public class UserController {
    @RequestMapping("/save")
    @ResponseBody
    public String save(){
        System.out.println("郭浩康第一個Sprintmvc項目建立成功");
        return "{spring1save()...}";
    }
    @RequestMapping("/delete")
    @ResponseBody
    public String delete(){
        System.out.println("");
        return "{detete删除運作成功}";
    }
    @RequestMapping("/kk")
    @ResponseBody
    public String kk(String name,int age){
        System.out.println("收到參數:"+name);
        System.out.println("收到參數:"+age);
        return "{kk成功}";
    }
}
           

使用配置類ServletConfig替換web.xml

将web.xml删除，換成ServletContainersInitConfig

package com.itheima.config;

import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.support.AbstractDispatcherServletInitializer;

public class ServletConfig extends AbstractDispatcherServletInitializer {
    //加載Springmvc容器
    @Override
    protected WebApplicationContext createServletApplicationContext() {
        AnnotationConfigWebApplicationContext ctx=new AnnotationConfigWebApplicationContext();
        ctx.register(SpringmvcConfig.class);
        return ctx;
    }
//設定請求處理
    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
//加載Spring容器
    @Override
    protected WebApplicationContext createRootApplicationContext() {
        return null;
    }
}
           

運作結果

控制台接收到參數