实现数据库查询用户，获取密码，编写了单元测试类

src/main/java/com/fjy/spring/Application.java

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+package com.fjy.spring;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Application.class, args);
+	}
+}

src/main/java/com/fjy/spring/controller/LoginController.java

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+package com.fjy.spring.controller;
+
+import com.fjy.spring.domain.TbUser;
+import com.fjy.spring.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+@Controller
+public class LoginController {
+
+    @Autowired
+    private UserService userService;
+
+    @GetMapping("/index")
+    public String toLoginPage(){
+        return "login";
+    }
+
+    @PostMapping("/login/dologin")
+    public boolean doLogin(TbUser tbUser){
+        if (userService.doLoginService(tbUser.getColname(),tbUser.getColpassword())){
+            return true;
+        }
+        return false;
+    }
+}

src/main/java/com/fjy/spring/controller/TestController.java

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+package com.fjy.spring.controller;
+
+import com.fjy.spring.domain.TbUser;
+import com.fjy.spring.repository.TbUserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+public class TestController {
+
+    @Autowired
+    private TbUserRepository tbUserRepository;
+
+    @GetMapping("/test")
+    public String TestHello(){
+        return "Hello Spring";
+    }
+
+    @GetMapping("/test/name/{name}")
+    public String TestDataBase(@PathVariable("name") String name){
+        //TbUser user = (TbUser)tbUserRepository.findById(id).get();
+        TbUser user = (TbUser)tbUserRepository.findByColname(name).get();
+        return user.getColpassword();
+    }
+
+    @GetMapping("/test/id/{id}")
+    public String TestDataBaseId(@PathVariable("id") Integer id){
+        TbUser user = (TbUser)tbUserRepository.findById(id).get();
+        return user.toString();
+    }
+}

src/main/java/com/fjy/spring/domain/TbUser.java

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+package com.fjy.spring.domain;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+@Entity
+public class TbUser {
+    @Id
+    @GeneratedValue
+    private Integer coluserid;
+
+    private String colname;
+    private String colpassword;
+    private String colemail;
+    private String colstudentno;
+    private String colrealname;
+
+    public Integer getColuserid() {
+        return coluserid;
+    }
+
+    public void setColuserid(Integer coluserid) {
+        this.coluserid = coluserid;
+    }
+
+    public String getColname() {
+        return colname;
+    }
+
+    public void setColname(String colname) {
+        this.colname = colname;
+    }
+
+    public String getColpassword() {
+        return colpassword;
+    }
+
+    public void setColpassword(String colpassword) {
+        this.colpassword = colpassword;
+    }
+
+    public String getColemail() {
+        return colemail;
+    }
+
+    public void setColemail(String colemail) {
+        this.colemail = colemail;
+    }
+
+    public String getColstudentno() {
+        return colstudentno;
+    }
+
+    public void setColstudentno(String colstudentno) {
+        this.colstudentno = colstudentno;
+    }
+
+    public String getColrealname() {
+        return colrealname;
+    }
+
+    public void setColrealname(String colrealname) {
+        this.colrealname = colrealname;
+    }
+
+    @Override
+    public String toString() {
+        return "TbUser{" +
+                "coluserid=" + coluserid +
+                ", colname='" + colname + '\'' +
+                ", colpassword='" + colpassword + '\'' +
+                ", colemail='" + colemail + '\'' +
+                ", colstudentno='" + colstudentno + '\'' +
+                ", colrealname='" + colrealname + '\'' +
+                '}';
+    }
+}

src/main/java/com/fjy/spring/repository/TbUserRepository.java

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+package com.fjy.spring.repository;
+
+import com.fjy.spring.domain.TbUser;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface TbUserRepository extends JpaRepository<TbUser,Integer> {
+
+    public Optional<TbUser> findByColname(String name);
+
+}

src/main/java/com/fjy/spring/service/UserService.java

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+package com.fjy.spring.service;
+
+import com.fjy.spring.domain.TbUser;
+import com.fjy.spring.repository.TbUserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserService {
+
+    @Autowired
+    private TbUserRepository tbUserRepository;
+
+
+    public boolean doLoginService(String name,String password){
+        TbUser user = (TbUser)tbUserRepository.findByColname(name).get();
+        if (password.equals(user.getColpassword())){
+            return true;
+        }
+        return false;
+    }
+}

src/main/resources/application-dev.yml

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+#开发环境配置文件
+server:
+  servlet:
+    context-path: /cms
+  port: 8080
+spring:
+  thymeleaf:
+    prefix: classpath:/templates/
+  datasource:
+    driver-class-name: com.mysql.jdbc.Driver
+    url: jdbc:mysql://localhost:3306/db_imis2?useUnicode=true&characterEncoding=utf-8&useSSL=true
+    username: imis2
+    password: 2015imis2
+
+  jpa:
+    hibernate:
+      ddl-auto: update
+    show-sql: true
+debug: true

src/main/resources/application.yml

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+#控制配置文件调用
+spring:
+  profiles:
+    active: dev

src/main/resources/static/login.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>登录</title>
+</head>
+<body>
+<h1>登录系统</h1>
+</body>
+</html>

src/main/resources/templates/login.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>登录</title>
+</head>
+<body>
+<h1>登录系统</h1>
+</body>
+</html>

src/test/java/com/fjy/spring/ApplicationTests.java

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+package com.fjy.spring;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class ApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}

src/test/java/com/fjy/spring/controller/LoginControllerTest.java

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+package com.fjy.spring.controller;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
+
+import static org.junit.Assert.*;
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@AutoConfigureMockMvc
+public class LoginControllerTest {
+
+    @Autowired
+    private MockMvc mvc;
+
+    @Test
+    public void toLoginPage() throws Exception{
+        mvc.perform(MockMvcRequestBuilders.get("/index"))
+                .andExpect(MockMvcResultMatchers.status().isOk())
+                .andExpect(MockMvcResultMatchers.content().string("/login"));
+    }
+}

src/test/java/com/fjy/spring/controller/TestControllerTest.java

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+package com.fjy.spring.controller;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
+
+import static org.junit.Assert.*;
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@AutoConfigureMockMvc
+public class TestControllerTest {
+
+    @Autowired
+    private MockMvc mvc;
+
+    @Test
+    public void testHello()throws Exception {
+        mvc.perform(MockMvcRequestBuilders.get("/test"))
+                .andExpect(MockMvcResultMatchers.status().isOk())
+                .andExpect(MockMvcResultMatchers.content().string("Hello Spring"));
+    }
+
+   @Test
+    public void testDataBase()throws Exception {
+        mvc.perform(MockMvcRequestBuilders.get("/test/name/root"))
+                .andExpect(MockMvcResultMatchers.status().isOk())
+                .andExpect(MockMvcResultMatchers.content().string("root"));
+    }
+
+    @Test
+    public void testDataBaseId()throws Exception {
+        mvc.perform(MockMvcRequestBuilders.get("/test/id/1"))
+                .andExpect(MockMvcResultMatchers.status().isOk());
+    }
+}