添加异常处理

2017-10-21 14:08:12 +08:00
parent 141e2433b0
commit c6018b21d1
12 changed files with 329 additions and 4 deletions
@@ -20,10 +20,10 @@
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>
-        <!--<dependency>-->
-            <!--<groupId>org.springframework.boot</groupId>-->
-            <!--<artifactId>spring-boot-starter-data-redis</artifactId>-->
-        <!--</dependency>-->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-redis</artifactId>
+        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
@@ -0,0 +1 @@
+
@@ -0,0 +1,19 @@
+package com.micro.fast.security.demo.controller;
+
+import com.micro.fast.security.demo.exception.UserNotExistsException;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Map;
+
+//异常处理类
+@RestControllerAdvice
+public class ControllerExceptionHandler{
+
+  //处理UserNotExists异常，当app调用的时候返回这里的信息
+  @ExceptionHandler(UserNotExistsException.class)
+  @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)//定义返回的http状态码
+  public Map<String,Object> handlerUserNotExitsHandler(UserNotExistsException ex){
+    return null;
+  }
+}
@@ -0,0 +1,62 @@
+package com.micro.fast.security.demo.controller;
+
+import com.fasterxml.jackson.annotation.JsonView;
+import com.micro.fast.security.demo.pojo.User;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+@RequestMapping("/user")
+public class RestfulController {
+
+  @GetMapping("/{id:\\d+}")//使用正则表达式指定传入的参数只能是数字
+  @JsonView(User.DetailView.class)
+  public User getInfo(@PathVariable("id") String id){
+    User user = new User("tom");
+    return user;
+  }
+
+  @GetMapping
+  @JsonView(User.SimpleView.class)
+  public List<User> query(@RequestParam("username") String username){
+    List<User> users = new ArrayList<>();
+    users.add(new User("name"));
+    users.add(new User("name"));
+    users.add(new User("name"));
+    return users;
+  }
+
+  /**
+   * 不写视图解析器的JsonView的话就是显示所有的字段 @Valid配合pojo上的注解进行校验不写这个注解的话就不会执行校验逻辑,如果不写BindingResult参数的话，
+   * 参数校验不合法的话就不会进入方法体里面，直接报400错误
+   * @param user
+   * @param errors
+   * @return
+   */
+  @PostMapping
+  public User createUser(@Valid @RequestBody User user, BindingResult errors){
+    if (errors.hasErrors()){
+      //如果有错误信息的话就打印出错误信息
+      errors.getAllErrors().stream().forEach(error->{
+        System.out.println(error.getDefaultMessage());
+        FieldError fieldError = (FieldError) error;
+        //错误中输出字段名字
+        String s = fieldError.getField() + error.getDefaultMessage();
+        //输出检验错误的字段的名字
+        System.out.println(s);
+      });
+    }
+
+    System.out.println(user.getName());
+    System.out.println(user.getPassword());
+    System.out.println(user.getBirthday());
+    return user;
+  }
+
+
+}
@@ -0,0 +1 @@
+package com.micro.fast.security.demo.controller;
@@ -0,0 +1,21 @@
+package com.micro.fast.security.demo.exception;
+
+/**
+ * 自定义异常，传入详细的异常信息
+ */
+public class UserNotExistsException extends RuntimeException {
+
+  private String id;
+  public UserNotExistsException(String id){
+    super("user not exist");
+    this.id=id;
+  }
+
+  public String getId() {
+    return id;
+  }
+
+  public void setId(String id) {
+    this.id = id;
+  }
+}
@@ -0,0 +1,77 @@
+package com.micro.fast.security.demo.pojo;
+
+import com.fasterxml.jackson.annotation.JsonView;
+import org.hibernate.validator.constraints.*;
+
+import javax.validation.constraints.*;
+import java.util.Date;
+
+/**
+ * 使用jsonView和接口来声明多个视图
+ * 在查询方法上指定视图
+ */
+public class User {
+  public Date getBirthday() {
+    return birthday;
+  }
+
+  public void setBirthday(Date birthday) {
+    this.birthday = birthday;
+  }
+
+  public  interface SimpleView{};
+  public interface DetailView extends SimpleView{};
+
+  @JsonView(SimpleView.class)
+  private String name;
+
+  @JsonView(DetailView.class)
+  @NotBlank(message = "用户密码不能为空")//参数校验，使用message自定义校验返回的错误信息
+  private String password;
+
+  @JsonView(SimpleView.class)
+  @NotBlank//hibernate valid
+  @NotNull
+  @NotEmpty//字符串不能为空，集合不能为空
+  @Size(min = 1,max = 20)//检验集合元素的个数
+  @Email
+  @Pattern(regexp = "a{0,1}")
+  @CreditCardNumber()//是否是美国的银行卡号
+  @Length(min = 1,max = 100)//校验字符串的航渡
+  @Range(min = 1,max = 2)//检验数字的值
+  @SafeHtml//检验字符串是安全的html
+  @URL//检验字符串是安全的html
+  @AssertFalse
+  @AssertTrue
+  @DecimalMax(value = "1.00",inclusive = true)//小于等于　可以修饰在字符串上
+  @DecimalMin(value = "2.00",inclusive = false)//大于等于　可以修饰在字符串上
+  @Digits(integer = 1,fraction = 2)//校验数字的格式　integer指定整数部分的长度 fraction指定小数部分的长度
+  @Past //日期必须是过去的日期
+//  @Future　日期必须是未来的日期
+  @Max(value = 1)//最大值　小于等于　不能注解在字符串上
+  @Min(2) //最小值　大于等于　不能注解在字符串上
+  private Date birthday;
+
+  public User() {
+  }
+
+  public User(String name) {
+    this.name = name;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public String getPassword() {
+    return password;
+  }
+
+  public void setPassword(String password) {
+    this.password = password;
+  }
+}
@@ -0,0 +1,28 @@
+package com.micro.fast.security.demo.validator;
+
+
+import org.springframework.stereotype.Component;
+
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+/**
+ * MyContraint 注解的类型，
+ * String　要对什么类型的字段进行校验
+ */
+@Component
+public class MyConstrainValidator implements ConstraintValidator<MyContraint,String> {
+
+  //@Autowired 注入Service
+  //private String name;
+  @Override
+  public void initialize(MyContraint myContraint) {
+    System.out.println("初始化校验器");
+  }
+
+  @Override
+  public boolean isValid(String s, ConstraintValidatorContext constraintValidatorContext) {
+  //校验的逻辑
+    return false;
+  }
+}
@@ -0,0 +1,21 @@
+package com.micro.fast.security.demo.validator;
+
+import javax.validation.Constraint;
+import javax.validation.Payload;
+import java.lang.annotation.*;
+
+/**
+ * 自定义注解
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.FIELD,ElementType.METHOD})
+@Inherited
+@Documented
+@Constraint(validatedBy = MyConstrainValidator.class)//指明校验逻辑的类
+public @interface MyContraint {
+  String message() ;//校验的失败的时候返回的信息
+
+  Class<?>[] groups() default {};
+
+  Class<? extends Payload>[] payload() default {};
+}
@@ -6,6 +6,9 @@ spring:
    username: root
    password: studyj2e
    driver-class-name: com.mysql.jdbc.Driver
+  redis:
+    host: 127.0.0.1
+    port: 6379
 security:
  basic:
    enabled: false
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>404</title>
+</head>
+<body>
+<h1>你所访问的页面不存在，对浏览器返回此页面，对app返回的信息是json信息</h1>
+</body>
+</html>
@@ -1,9 +1,21 @@
 package com.micro.fast.security.demo;

+import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
 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 org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
+
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.Date;

@RunWith(SpringRunner.class)
@SpringBootTest
@@ -13,4 +25,74 @@ public class BootStarterSecurityDemoApplicationTests {
 	public void contextLoads() {
 	}

+	@Autowired
+	private WebApplicationContext wac;
+
+	private MockMvc mockMvc;
+
+	/**
+	 * 在每次测试执行前构建mvc环境
+	 */
+	@Before
+	public void setup(){
+		mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();
+	}
+
+  /**
+   * 用户信息查询
+   */
+	@Test
+	public void whenQuerySuccess(){
+	  //测试接口的返回结果是否满足预期
+		try {
+			mockMvc.perform(MockMvcRequestBuilders.get("/user").param("username","pojo")
+          .contentType(MediaType.APPLICATION_JSON_UTF8))
+          .andExpect(MockMvcResultMatchers.status().isOk())//检查状态码
+          .andExpect(MockMvcResultMatchers.jsonPath("$.length()").value(3));//检查集合的长度是３个
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+  /**
+   * 获取用户的信息详情
+   */
+	@Test
+	public void whenGetInfoSuccess(){
+    try {
+      mockMvc.perform(MockMvcRequestBuilders.get("/user/1")
+          .contentType(MediaType.APPLICATION_JSON_UTF8))
+          .andExpect(MockMvcResultMatchers.status().isOk())
+          .andExpect(MockMvcResultMatchers.jsonPath("$.name").value("tom"));
+    } catch (Exception e) {
+      e.printStackTrace();
+    }
+  }
+
+	/**
+	 * 创建用户
+	 */
+	@Test
+  public void whenCreateSuccess(){
+		//前台传入的是长整形
+		Date date = new Date();
+		String content = "{\"name\":\"tom\",\"password\":\"\",\"birthday\":"+date.getTime()+"}";
+		try {
+			String tom = mockMvc.perform(MockMvcRequestBuilders.post("/user")
+					.contentType(MediaType.APPLICATION_JSON_UTF8).content(content))
+					.andExpect(MockMvcResultMatchers.status().isOk())
+					.andExpect(MockMvcResultMatchers.jsonPath("$.name").value("tom"))
+					.andReturn().getResponse().getContentAsString();
+			//后台返回的日期格式也是长整形
+			System.out.println(tom);
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	public void whenUpdateSuccess(){
+		//本地的时间加１年
+  	Date date = new Date(LocalDateTime.now().plusYears(1).atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
+
+	}
 }
				`@@ -0,0 +1 @@`
				`package com.micro.fast.security.demo.controller;`