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These are the user uploaded subtitles that are being translated: 1 1 00:00:01,230 --> 00:00:02,950 Alright, so moving into Eclipse, 2 2 00:00:02,950 --> 00:00:05,100 we're going to go ahead and write some code. 3 3 00:00:05,100 --> 00:00:07,660 So, we'll make use of that existing project 4 4 00:00:07,660 --> 00:00:10,010 that we've had, Spring Demo One, 5 5 00:00:10,010 --> 00:00:11,820 and this is the same project that we had 6 6 00:00:11,820 --> 00:00:13,460 in our previous videos as far as making use 7 7 00:00:13,460 --> 00:00:15,540 of our Coach, Baseball Coach, and Track Coach. 8 8 00:00:15,540 --> 00:00:17,733 So again, the same project there, 9 9 00:00:21,340 --> 00:00:22,520 and what we want to do is make use of 10 10 00:00:22,520 --> 00:00:24,880 some code that we've downloaded for this course. 11 11 00:00:24,880 --> 00:00:26,810 So in the previous videos, we gave you the links 12 12 00:00:26,810 --> 00:00:29,710 on how to download the course files. 13 13 00:00:29,710 --> 00:00:31,070 So once you download them, you'll get 14 14 00:00:31,070 --> 00:00:34,150 this spring-and-hibernate-source-code.zip. 15 15 00:00:34,150 --> 00:00:36,300 You can extract it, and then you'll get this photo. 16 16 00:00:36,300 --> 00:00:38,230 So again, look at the previous videos 17 17 00:00:38,230 --> 00:00:40,460 in the courses for how to download 18 18 00:00:40,460 --> 00:00:42,810 the actual course zip file, but anyways, 19 19 00:00:42,810 --> 00:00:45,740 once you have it, you've unzipped it, 20 20 00:00:45,740 --> 00:00:47,860 there's this spring hibernate source code, 21 21 00:00:47,860 --> 00:00:49,070 and we'll look in this directory here 22 22 00:00:49,070 --> 00:00:51,520 called Spring Core because what we want 23 23 00:00:51,520 --> 00:00:54,100 to do is actually copy a starter file 24 24 00:00:54,100 --> 00:00:56,713 that'll help us out with the XML configurations. 25 25 00:00:58,320 --> 00:01:00,210 So, I just moved down into Spring Demo One, 26 26 00:01:00,210 --> 00:01:01,810 Starter File, and there's a file 27 27 00:01:01,810 --> 00:01:04,560 there called applicationContext.xml. 28 28 00:01:04,560 --> 00:01:07,530 It's just a basic starter file, basic shell, 29 29 00:01:07,530 --> 00:01:09,720 but let's go ahead and copy this file, 30 30 00:01:09,720 --> 00:01:11,663 just do a right click and choose copy, 31 31 00:01:14,170 --> 00:01:16,420 and let's move back over to Eclipse, 32 32 00:01:16,420 --> 00:01:18,750 and we want to place this in our source directory. 33 33 00:01:18,750 --> 00:01:21,240 Alright, so highlight that source directory, 34 34 00:01:21,240 --> 00:01:23,780 do a right click, and then choose paste 35 35 00:01:25,240 --> 00:01:26,710 because what this'll actually do is it'll 36 36 00:01:26,710 --> 00:01:28,560 paste the file and actually put it on 37 37 00:01:28,560 --> 00:01:31,170 our applications class path so we can make use 38 38 00:01:31,170 --> 00:01:34,270 of our class path application context. 39 39 00:01:34,270 --> 00:01:35,320 So, there's our file. 40 40 00:01:35,320 --> 00:01:37,510 Now if we just double click this file, 41 41 00:01:37,510 --> 00:01:40,630 our first step is configuring our Spring Beans. 42 42 00:01:40,630 --> 00:01:43,360 Alright, so this file has a lot of 43 43 00:01:43,360 --> 00:01:45,870 header information here for the xml name spaces, 44 44 00:01:45,870 --> 00:01:48,160 and that's what's required for Spring 45 45 00:01:48,160 --> 00:01:50,170 to be able to process this file using 46 46 00:01:50,170 --> 00:01:53,480 its grammar and xml schema, 47 47 00:01:53,480 --> 00:01:55,420 and now let's go ahead and define our bean. 48 48 00:01:55,420 --> 00:01:57,420 So, we have this bean, and now 49 49 00:01:57,420 --> 00:01:59,820 I need to set up two attributes. 50 50 00:01:59,820 --> 00:02:02,650 The first attribute I need to set is ID equals, 51 51 00:02:02,650 --> 00:02:05,540 and this is basically our alias of what the app will use. 52 52 00:02:05,540 --> 00:02:09,170 I'll just call it My Coach, and then I give class. 53 53 00:02:09,170 --> 00:02:12,630 Now I give the fully qualified class name 54 54 00:02:12,630 --> 00:02:14,460 of our implementation. 55 55 00:02:14,460 --> 00:02:16,100 So in this case, I want the Baseball Coach. 56 56 00:02:16,100 --> 00:02:17,780 So, I know the Baseball Coach is 57 57 00:02:17,780 --> 00:02:19,610 in com.Luv2code.springdemo., and 58 58 00:02:21,360 --> 00:02:22,815 actually this is Track Coach. 59 59 00:02:22,815 --> 00:02:23,648 (chuckling) 60 60 00:02:23,648 --> 00:02:25,443 Sorry, so com.Luv2code.springdemo.TrackCoach, 61 61 00:02:26,980 --> 00:02:29,203 and that's our theme definition there. 62 62 00:02:30,410 --> 00:02:32,250 So, that pretty much covers step one 63 63 00:02:32,250 --> 00:02:35,343 as far as configuring our Spring Beans. 64 64 00:02:37,580 --> 00:02:39,940 Alright, so now let's go ahead and 65 65 00:02:39,940 --> 00:02:41,623 take a look at one other item, 66 66 00:02:46,410 --> 00:02:47,243 and now what we're going to do is 67 67 00:02:47,243 --> 00:02:50,350 actually make use of a java class. 68 68 00:02:50,350 --> 00:02:53,893 So, I'm going to create a new class called Spring Hello App. 69 69 00:02:55,590 --> 00:02:58,730 So, I'll select my package here. 70 70 00:02:58,730 --> 00:03:02,333 I'll do a right click, and I'll say new class, 71 71 00:03:06,890 --> 00:03:09,090 and the actual name of the class here, 72 72 00:03:09,090 --> 00:03:12,163 I'll actually call it Hello Spring App, 73 73 00:03:16,100 --> 00:03:17,400 and also I'll check the box here 74 74 00:03:17,400 --> 00:03:19,750 at the bottom, public static void main, 75 75 00:03:19,750 --> 00:03:22,930 just so it'll give us a main method for our application, 76 76 00:03:22,930 --> 00:03:25,310 and then I'll just hit the finish button. 77 77 00:03:25,310 --> 00:03:27,010 Okay, great, so again, just like before, 78 78 00:03:27,010 --> 00:03:30,143 this gives us a very basic java class. 79 79 00:03:33,400 --> 00:03:35,150 Now, what I like to do is I always like 80 80 00:03:35,150 --> 00:03:37,580 to put in comments first before I start writing code. 81 81 00:03:37,580 --> 00:03:38,820 So, the first thing I want to do 82 82 00:03:38,820 --> 00:03:41,293 here is load the spring configuration file, 83 83 00:03:44,440 --> 00:03:45,510 and then I actually want to go ahead 84 84 00:03:45,510 --> 00:03:48,073 and retrieve a bean from the spring container. 85 85 00:03:50,040 --> 00:03:52,030 Now that I have the bean, then I'll call methods 86 86 00:03:52,030 --> 00:03:54,110 on the bean, or a method on the bean, 87 87 00:03:54,110 --> 00:03:56,040 and then finally just to be nice, 88 88 00:03:56,040 --> 00:03:59,800 I'll close the actual application context. 89 89 00:03:59,800 --> 00:04:01,580 So, that's my basic game plan here 90 90 00:04:01,580 --> 00:04:04,643 for building our Hello Spring App. 91 91 00:04:07,670 --> 00:04:09,240 Alright, so let me stretch out here at the bottom, 92 92 00:04:09,240 --> 00:04:10,910 give myself some white space, 93 93 00:04:10,910 --> 00:04:13,710 and now let's go ahead and cover step two 94 94 00:04:13,710 --> 00:04:15,500 of creating a Spring container. 95 95 00:04:15,500 --> 00:04:16,910 So again, here we're going to use 96 96 00:04:16,910 --> 00:04:20,020 this Class Path XML Application context, 97 97 00:04:20,020 --> 00:04:22,520 and I say new, and that's a really long name, 98 98 00:04:22,520 --> 00:04:24,991 so I'm just going to copy paste that name. 99 99 00:04:24,991 --> 00:04:26,470 (chuckling) 100 100 00:04:26,470 --> 00:04:29,460 I'm taking the shortcut, and paste, 101 101 00:04:29,460 --> 00:04:31,690 and then in the construct, I give 102 102 00:04:31,690 --> 00:04:33,640 the actual name of the config file. 103 103 00:04:33,640 --> 00:04:35,370 So just like in the previous example here, 104 104 00:04:35,370 --> 00:04:37,580 applicationContext.xml. 105 105 00:04:37,580 --> 00:04:39,890 That's the name of our XML config file. 106 106 00:04:39,890 --> 00:04:41,210 Now, that'll give us error message 107 107 00:04:41,210 --> 00:04:43,630 as far as on an import, so we simply hover 108 108 00:04:43,630 --> 00:04:46,370 over that error message, and then we choose 109 109 00:04:46,370 --> 00:04:48,620 that first option of importing. 110 110 00:04:48,620 --> 00:04:51,090 So if you move up top, Eclipse will help you 111 111 00:04:51,090 --> 00:04:56,070 out with importing that class from the appropriate package. 112 112 00:04:56,070 --> 00:04:58,380 So, that's a nice little feature there. 113 113 00:04:58,380 --> 00:05:01,543 Okay, so now let's retrieve the bean from the container. 114 114 00:05:04,140 --> 00:05:06,980 So here, I say context.getBean, 115 115 00:05:06,980 --> 00:05:09,480 and I give myCoach, that's the ID, 116 116 00:05:09,480 --> 00:05:12,590 comma Coach.class, that's the actual name 117 117 00:05:12,590 --> 00:05:15,433 of the interface for our implementation. 118 118 00:05:17,730 --> 00:05:19,610 So now, I'm simply going to call methods on the bean. 119 119 00:05:19,610 --> 00:05:21,060 So, I simply use my system out 120 120 00:05:21,060 --> 00:05:24,180 print line trick, sys out control space, 121 121 00:05:24,180 --> 00:05:27,467 and then I'll say theCoach.getDailyWorkout, 122 122 00:05:32,740 --> 00:05:34,900 and now I simply go through and close the context 123 123 00:05:34,900 --> 00:05:37,230 by saying context.close, just to be nice, 124 124 00:05:37,230 --> 00:05:39,753 just to clean up after ourselves. 125 125 00:05:42,150 --> 00:05:44,160 Alright, so that's kind of the basic game plan 126 126 00:05:44,160 --> 00:05:45,490 here with this Hello Spring App. 127 127 00:05:45,490 --> 00:05:46,470 So, the first thing we do is 128 128 00:05:46,470 --> 00:05:49,010 we load the spring configuration file, 129 129 00:05:49,010 --> 00:05:52,010 then we go through and retrieve the bean from the container, 130 130 00:05:53,010 --> 00:05:55,540 then I call methods on that bean, 131 131 00:05:55,540 --> 00:05:58,910 and then finally I close the context by doing my cleanup, 132 132 00:05:58,910 --> 00:06:00,543 and that's the basic game plan. 133 133 00:06:01,420 --> 00:06:04,331 That's kind of your first Spring application right there. 134 134 00:06:04,331 --> 00:06:05,164 (gentle cheering) 135 135 00:06:05,164 --> 00:06:06,050 Now, let's go ahead and try this out. 136 136 00:06:06,050 --> 00:06:07,330 Let's run it. 137 137 00:06:07,330 --> 00:06:10,523 So, just do a right click, run as a java application, 138 138 00:06:12,530 --> 00:06:14,110 and there we go, boo-ya! 139 139 00:06:14,110 --> 00:06:15,410 Check the output. 140 140 00:06:15,410 --> 00:06:17,640 So here, look at some of the info messages. 141 141 00:06:17,640 --> 00:06:19,790 So, it's loading XML bean definitions 142 142 00:06:19,790 --> 00:06:21,140 from your class app resource, 143 143 00:06:21,140 --> 00:06:22,400 that's our configuration file, 144 144 00:06:22,400 --> 00:06:25,170 applicationContext.XML, and then 145 145 00:06:25,170 --> 00:06:26,610 we've called our sys out print line 146 146 00:06:26,610 --> 00:06:29,397 on the get daily workout, and our track coach said 147 147 00:06:29,397 --> 00:06:33,560 "Hey, we need you to run a hard 5K." 148 148 00:06:33,560 --> 00:06:35,550 So, this looks really good. 149 149 00:06:35,550 --> 00:06:36,670 I'm kind of excited about this. 150 150 00:06:36,670 --> 00:06:38,140 I hope you are too. 151 151 00:06:38,140 --> 00:06:40,270 This is our first real Spring Application, 152 152 00:06:40,270 --> 00:06:42,403 and it actually works which is cool. 153 153 00:06:46,930 --> 00:06:48,630 Alrighty, so just a heads up, 154 154 00:06:48,630 --> 00:06:49,960 when you run your application, 155 155 00:06:49,960 --> 00:06:52,890 you may not see the red logging messages. 156 156 00:06:52,890 --> 00:06:56,390 This is due to new changes in Spring 5.1. 157 157 00:06:56,390 --> 00:06:58,090 However, don't worry. 158 158 00:06:58,090 --> 00:07:01,000 You can configure your app to see the logging message. 159 159 00:07:01,000 --> 00:07:02,460 Simply go to the link here at 160 160 00:07:02,460 --> 00:07:07,270 luv2code.com/spring-xml-logs and I'll walk you 161 161 00:07:07,270 --> 00:07:11,200 through the exact process to add the configuration for this. 162 162 00:07:11,200 --> 00:07:12,033 Alrighty. 163 163 00:07:16,590 --> 00:07:18,650 So again, there's the code up top, 164 164 00:07:18,650 --> 00:07:21,120 and then our message is being displayed 165 165 00:07:21,120 --> 00:07:23,963 there at the bottom, reading the config file, 166 166 00:07:24,810 --> 00:07:26,633 getting the bean from the container, 167 167 00:07:27,879 --> 00:07:30,070 and then simply calling methods on that bean, 168 168 00:07:30,070 --> 00:07:31,710 and that gives us the desired output 169 169 00:07:31,710 --> 00:07:33,533 in our console window, cool. 170 170 00:07:36,870 --> 00:07:38,580 So, let me kind of switch back to 171 171 00:07:38,580 --> 00:07:40,650 our slides here for a second because 172 172 00:07:40,650 --> 00:07:42,900 now we've kind of come full circle here. 173 173 00:07:42,900 --> 00:07:46,450 So, now we have an app that meets the requirements. 174 174 00:07:46,450 --> 00:07:48,490 Our app is configurable based on 175 175 00:07:48,490 --> 00:07:50,530 that configuration file we just worked on, 176 176 00:07:50,530 --> 00:07:52,660 and also we can easily change the coach 177 177 00:07:52,660 --> 00:07:54,770 for another sport by simply putting 178 178 00:07:54,770 --> 00:07:57,030 in a different coach implementation. 179 179 00:07:57,030 --> 00:08:00,340 So, I'd like to say mission accomplished, 180 180 00:08:00,340 --> 00:08:01,870 and I'd like to say that we've met all 181 181 00:08:01,870 --> 00:08:04,403 of those requirements from our manager. 182 182 00:08:04,403 --> 00:08:05,540 (chuckling) 183 183 00:08:05,540 --> 00:08:07,490 So, hey boss, we got it all covered here. 184 184 00:08:07,490 --> 00:08:09,330 We're all done for the day, and thanks 185 185 00:08:09,330 --> 00:08:13,060 to Spring, our life is much easier. 186 186 00:08:13,060 --> 00:08:14,170 So, good job here. 187 187 00:08:14,170 --> 00:08:15,500 Our first Spring app, it's up, 188 188 00:08:15,500 --> 00:08:17,400 it's running, and it's working. 189 189 00:08:17,400 --> 00:08:19,470 A lot of great Spring stuff coming on later, 190 190 00:08:19,470 --> 00:08:22,470 but hey, this is a good start, so give yourself a pat 191 191 00:08:22,470 --> 00:08:24,963 on the back, job well done. 16382