Spring工程 使用日志
标签:dHash result ali val spring var items ash mamicode
1.spring boot项目默认使用什么技术处理日志?
答:使用了log4j,使用log4j需要的配置:logback.xml配置文件和以下代码
1 private static final Logger log = LoggerFactory.getLogger(UserController.class);
1 log.debug("===============================用户信息:", user); 2 log.info("正常信息"); 3 log.error("错误");
完整代码:
1 package com.hzy.controller;
2
3 import java.util.Collections;
4 import java.util.LinkedHashMap;
5 import java.util.Map;
6
7 import javax.validation.Valid;
8
9 import org.slf4j.Logger;
10 import org.slf4j.LoggerFactory;
11 import org.springframework.beans.factory.annotation.Autowired;
12 import org.springframework.stereotype.Controller;
13 import org.springframework.ui.Model;
14 import org.springframework.validation.BindingResult;
15 import org.springframework.web.bind.annotation.GetMapping;
16 import org.springframework.web.bind.annotation.PathVariable;
17 import org.springframework.web.bind.annotation.PostMapping;
18
19 import com.hzy.dao.UserDao;
20 import com.hzy.model.User;
21
22 @Controller
23 public class UserController {
24
25 private static final Logger log = LoggerFactory.getLogger(UserController.class);
26
27 final static Map RADIO_GENDER = Collections.unmodifiableMap(new LinkedHashMap() {
28 private static final long serialVersionUID = 1L;
29 {
30 put("男", "男");
31 put("女", "女");
32 }
33 });
34
35 final static Map CHECK_COURSE = Collections.unmodifiableMap(new LinkedHashMap() {
36 private static final long serialVersionUID = 1L;
37
38 {
39 put("Java程序设计", "java");
40 put("Spring", "spring");
41 put("MySQL", "mysql");
42 put("HTML", "html");
43 }
44 });
45
46 final static Map SELECT_HOMETOWN = Collections.unmodifiableMap(new LinkedHashMap() {
47 private static final long serialVersionUID = 1L;
48 {
49 put("上海", "上海");
50 put("广东", "广东");
51 put("广州", "广州");
52 }
53 });
54
55 final static Map SELECT_HOBBIES = Collections.unmodifiableMap(new LinkedHashMap() {
56 private static final long serialVersionUID = 1L;
57 { 59 put("听歌", "听歌");
60 put("玩游戏", "玩游戏");
61 put("睡觉", "睡觉");
62 put("看电视", "看电视");
63 }
64 });
65
66 @Autowired
67 private UserDao userDao;
68
69 /** 控制器的方法 **/
70
71 @GetMapping("/")
72 public String index() {
73 return "redirect:/allUser";
74 }
75
76 @GetMapping("/allUser")
77 public String allUser(Model model) {
78 model.addAttribute("users", userDao.getUsers());
79 return "list-user";
80 }
81
82 @GetMapping("/adduser")
83 public String showAddUserForm(Model model) {
84 User user = new User();
85 user.setId(userDao.getMaxId());
86 model.addAttribute("user", user);
87 model.addAttribute("radioItems", RADIO_GENDER);
88 model.addAttribute("checkItems", CHECK_COURSE);
89 model.addAttribute("selectItems", SELECT_HOMETOWN);
90 model.addAttribute("multipleItems", SELECT_HOBBIES);
91 return "add-user";
92 }
93
94 @PostMapping("/adduser")
95 public String addUser(@Valid User user, BindingResult bindingResult, Model model) {
96
97 if (bindingResult.hasErrors()) {
98 model.addAttribute("user", user);
99 model.addAttribute("radioItems", RADIO_GENDER);
100 model.addAttribute("checkItems", CHECK_COURSE);
101 model.addAttribute("selectItems", SELECT_HOMETOWN);
102 model.addAttribute("multipleItems", SELECT_HOBBIES);
103 return "add-user";
104 }
105
106 userDao.getUsers().add(user);
107
108 System.out.println("-----------------------------------------------------"+user);
109
110 log.debug("===============================用户信息:", user);
111 log.info("正常信息");
112 log.error("错误");
113
114 return "redirect:/allUser";
115 }
116
117 @GetMapping("/edit/{id}") // {id}是占位符
118 public String showUpdateForm(@PathVariable("id") long id, Model model) { // @PathVariable 路径变量
119 User user = userDao.getUser(id);
120 model.addAttribute("user", user);
121 return "update-user";
122 }
123
124 @PostMapping("/update/{id}")
125 public String updateUser(@PathVariable("id") long id, @Valid User user, BindingResult bindingResult) {
126 if (bindingResult.hasErrors()) {
127 return "update-user";
128 }
129 userDao.update(user, id);
130 return "redirect:/allUser";
131 }
132
133 @GetMapping("/delete/{id}")
134 public String deleteUser(@PathVariable("id") long id, Model model) {
135 userDao.delete(id);
136 return "redirect:/allUser";
137 }
138
139 }
2.日志配置文件logback.xml放在哪里?
答:放在src/main/resources目录下
Spring工程 使用日志
标签:dHash result ali val spring var items ash mamicode
原文地址:https://www.cnblogs.com/hzyhx/p/11108258.html
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