一、配置文件
1.由于它继承AbstractAnnotationConfigDispatcherServletInitializer，Servlet容器会把它当做配置文件
1 package spittr.config;
2
3 import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
4
5 import spittr.web.WebConfig;
6
7 public class SpitterWebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
8
9 @Override
10 protected Class<?>[] getRootConfigClasses() {
11 return new Class<?>[] { RootConfig.class };
12 }
13
14 @Override
15 protected Class<?>[] getServletConfigClasses() {
16 //Specify configuration class
17 return new Class<?>[] { WebConfig.class };
18 }
19
20 @Override
21 protected String[] getServletMappings() {
22 //Map DispatcherServlet to "/"
23 return new String[] { "/" };
24 }
25
26 }
2.替代以前的web.xml
1 package spittr.web;
2
3 import org.springframework.context.annotation.Bean;
4 import org.springframework.context.annotation.ComponentScan;
5 import org.springframework.context.annotation.Configuration;
6 import org.springframework.web.servlet.ViewResolver;
7 import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
8 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
9 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
10 import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
11 import org.springframework.web.servlet.view.InternalResourceViewResolver;
12
13 @Configuration
14 @EnableWebMvc
15 @ComponentScan("spittr.web")
16 public class WebConfig extends WebMvcConfigurerAdapter {
17
18 @Bean
19 public ViewResolver viewResolver() {
20 InternalResourceViewResolver resolver = new InternalResourceViewResolver();
21 resolver.setPrefix("/WEB-INF/views/");
22 resolver.setSuffix(".jsp");
23 return resolver;
24 }
25
26 @Override
27 public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
28 //Configure static content handling
29 configurer.enable();
30 //configurer.enable();是you’re asking DispatcherServlet to forward
31 //requests for static resources to the servlet container’s default servlet and not to try to
32 //handle them itself.
33 }
34
35 @Override
36 public void addResourceHandlers(ResourceHandlerRegistry registry) {
37 // TODO Auto-generated method stub
38 super.addResourceHandlers(registry);
39 }
40
41 }
3.
1 package spittr.config;
2
3 import java.util.regex.Pattern;
4
5 import org.springframework.context.annotation.ComponentScan;
6 import org.springframework.context.annotation.ComponentScan.Filter;
7 import org.springframework.context.annotation.Configuration;
8 import org.springframework.context.annotation.FilterType;
9 import org.springframework.context.annotation.Import;
10 import org.springframework.core.type.filter.RegexPatternTypeFilter;
11
12 import spittr.config.RootConfig.WebPackage;
13
14 @Configuration
15 @Import(DataConfig.class)
16 @ComponentScan(basePackages={"spittr"},
17 excludeFilters={
18 @Filter(type=FilterType.CUSTOM, value=WebPackage.class)
19 })
20 public class RootConfig {
21 public static class WebPackage extends RegexPatternTypeFilter {
22 public WebPackage() {
23 super(Pattern.compile("spittr\\.web"));
24 }
25 }
26 }
4.数据源
1 package spittr.config;
2
3 import javax.sql.DataSource;
4
5 import org.springframework.context.annotation.Bean;
6 import org.springframework.context.annotation.Configuration;
7 import org.springframework.context.annotation.ImportResource;
8 import org.springframework.jdbc.core.JdbcOperations;
9 import org.springframework.jdbc.core.JdbcTemplate;
10 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
11 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
12
13 @Configuration
14 //@ImportResource("classpath:applicationContext.xml")
15 public class DataConfig {
16
17 @Bean
18 public DataSource dataSource() {
19 return new EmbeddedDatabaseBuilder()
20 .setType(EmbeddedDatabaseType.H2)
21 .addScript("schema.sql")
22 .build();
23 }
24
25 @Bean
26 public JdbcOperations jdbcTemplate(DataSource dataSource) {
27 return new JdbcTemplate(dataSource);
28 }
29
30 }
二、dao
1.
package spittr.data;
import java.util.List;
import spittr.Spittle;
public interface SpittleRepository {
List<Spittle> findRecentSpittles();
List<Spittle> findSpittles(long max, int count);
Spittle findOne(long id);
void save(Spittle spittle);
}
2.
1 package spittr.data;
2
3 import spittr.Spitter;
4
5 public interface SpitterRepository {
6
7 Spitter save(Spitter spitter);
8
9 Spitter findByUsername(String username);
10
11 }
3.
1 package spittr.data;
2
3 import java.sql.ResultSet;
4 import java.sql.SQLException;
5 import java.util.List;
6
7 import org.springframework.beans.factory.annotation.Autowired;
8 import org.springframework.jdbc.core.JdbcOperations;
9 import org.springframework.jdbc.core.RowMapper;
10 import org.springframework.stereotype.Repository;
11
12 import spittr.Spittle;
13
14 @Repository
15 public class JdbcSpittleRepository implements SpittleRepository {
16
17 private JdbcOperations jdbc;
18
19 @Autowired
20 public JdbcSpittleRepository(JdbcOperations jdbc) {
21 this.jdbc = jdbc;
22 }
23
24 public List<Spittle> findRecentSpittles() {
25 return jdbc.query(
26 "select id, message, created_at, latitude, longitude" +
27 " from Spittle" +
28 " order by created_at desc limit 20",
29 new SpittleRowMapper());
30 }
31
32 public List<Spittle> findSpittles(long max, int count) {
33 return jdbc.query(
34 "select id, message, created_at, latitude, longitude" +
35 " from Spittle" +
36 " where id < ?" +
37 " order by created_at desc limit 20",
38 new SpittleRowMapper(), max);
39 }
40
41 public Spittle findOne(long id) {
42 return jdbc.queryForObject(
43 "select id, message, created_at, latitude, longitude" +
44 " from Spittle" +
45 " where id = ?",
46 new SpittleRowMapper(), id);
47 }
48
49 public void save(Spittle spittle) {
50 jdbc.update(
51 "insert into Spittle (message, created_at, latitude, longitude)" +
52 " values (?, ?, ?, ?)",
53 spittle.getMessage(),
54 spittle.getTime(),
55 spittle.getLatitude(),
56 spittle.getLongitude());
57 }
58
59 private static class SpittleRowMapper implements RowMapper<Spittle> {
60 public Spittle mapRow(ResultSet rs, int rowNum) throws SQLException {
61 return new Spittle(
62 rs.getLong("id"),
63 rs.getString("message"),
64 rs.getDate("created_at"),
65 rs.getDouble("longitude"),
66 rs.getDouble("latitude"));
67 }
68 }
69
70 }
4.
1 package spittr.data;
2
3 import java.sql.ResultSet;
4 import java.sql.SQLException;
5
6 import org.springframework.beans.factory.annotation.Autowired;
7 import org.springframework.jdbc.core.JdbcOperations;
8 import org.springframework.jdbc.core.RowMapper;
9 import org.springframework.stereotype.Repository;
10
11 import spittr.Spitter;
12
13 @Repository
14 public class JdbcSpitterRepository implements SpitterRepository {
15
16 private JdbcOperations jdbc;
17
18 @Autowired
19 public JdbcSpitterRepository(JdbcOperations jdbc) {
20 this.jdbc = jdbc;
21 }
22
23 public Spitter save(Spitter spitter) {
24 jdbc.update(
25 "insert into Spitter (username, password, first_name, last_name, email)" +
26 " values (?, ?, ?, ?, ?)",
27 spitter.getUsername(),
28 spitter.getPassword(),
29 spitter.getFirstName(),
30 spitter.getLastName(),
31 spitter.getEmail());
32 return spitter; // TODO: Determine value for id
33 }
34
35 public Spitter findByUsername(String username) {
36 return jdbc.queryForObject(
37 "select id, username, null, first_name, last_name, email from Spitter where username=?",
38 new SpitterRowMapper(),
39 username);
40 }
41
42 private static class SpitterRowMapper implements RowMapper<Spitter> {
43 public Spitter mapRow(ResultSet rs, int rowNum) throws SQLException {
44 return new Spitter(
45 rs.getLong("id"),
46 rs.getString("username"),
47 null,
48 rs.getString("first_name"),
49 rs.getString("last_name"),
50 rs.getString("email"));
51 }
52 }
53
54 }
5.
create table Spittle (
id identity,
message varchar(140) not null,
created_at timestamp not null,
latitude double,
longitude double
);
create table Spitter (
id identity,
username varchar(20) unique not null,
password varchar(20) not null,
first_name varchar(30) not null,
last_name varchar(30) not null,
email varchar(30) not null
);
6.log4j.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN" "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<!-- Appenders -->
<appender name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p: %c - %m%n" />
</layout>
</appender>
<!-- Application Loggers -->
<logger name="spittr">
<level value="info" />
</logger>
<!-- 3rdparty Loggers -->
<logger name="org.springframework.core">
<level value="info" />
</logger>
<logger name="org.springframework.beans">
<level value="info" />
</logger>
<logger name="org.springframework.context">
<level value="info" />
</logger>
<logger name="org.springframework.web">
<level value="info" />
</logger>
<!-- Root Logger -->
<root>
<priority value="warn" />
<appender-ref ref="console" />
</root>
</log4j:configuration>
三、实体类
1.
1 package spittr;
2
3 import java.util.Date;
4
5 import org.apache.commons.lang3.builder.EqualsBuilder;
6 import org.apache.commons.lang3.builder.HashCodeBuilder;
7
8 public class Spittle {
9
10 private final Long id;
11 private final String message;
12 private final Date time;
13 private Double latitude;
14 private Double longitude;
15
16 public Spittle(String message, Date time) {
17 this(null, message, time, null, null);
18 }
19
20 public Spittle(Long id, String message, Date time, Double longitude, Double latitude) {
21 this.id = id;
22 this.message = message;
23 this.time = time;
24 this.longitude = longitude;
25 this.latitude = latitude;
26 }
27
28 public long getId() {
29 return id;
30 }
31
32 public String getMessage() {
33 return message;
34 }
35
36 public Date getTime() {
37 return time;
38 }
39
40 public Double getLongitude() {
41 return longitude;
42 }
43
44 public Double getLatitude() {
45 return latitude;
46 }
47
48 @Override
49 public boolean equals(Object that) {
50 return EqualsBuilder.reflectionEquals(this, that, "id", "time");
51 }
52
53 @Override
54 public int hashCode() {
55 return HashCodeBuilder.reflectionHashCode(this, "id", "time");
56 }
57
58 }
2.
1 package spittr;
2
3 import javax.validation.constraints.NotNull;
4 import javax.validation.constraints.Size;
5
6 import org.apache.commons.lang3.builder.EqualsBuilder;
7 import org.apache.commons.lang3.builder.HashCodeBuilder;
8 import org.hibernate.validator.constraints.Email;
9
10 public class Spitter {
11
12 private Long id;
13
14 @NotNull
15 @Size(min=5, max=16)
16 private String username;
17
18 @NotNull
19 @Size(min=5, max=25)
20 private String password;
21
22 @NotNull
23 @Size(min=2, max=30)
24 private String firstName;
25
26 @NotNull
27 @Size(min=2, max=30)
28 private String lastName;
29
30 @NotNull
31 @Email
32 private String email;
33
34 public Spitter() {}
35
36 public Spitter(String username, String password, String firstName, String lastName, String email) {
37 this(null, username, password, firstName, lastName, email);
38 }
39
40 public Spitter(Long id, String username, String password, String firstName, String lastName, String email) {
41 this.id = id;
42 this.username = username;
43 this.password = password;
44 this.firstName = firstName;
45 this.lastName = lastName;
46 this.email = email;
47 }
48
49 public String getUsername() {
50 return username;
51 }
52
53 public void setUsername(String username) {
54 this.username = username;
55 }
56
57 public String getPassword() {
58 return password;
59 }
60
61 public void setPassword(String password) {
62 this.password = password;
63 }
64
65 public Long getId() {
66 return id;
67 }
68
69 public void setId(Long id) {
70 this.id = id;
71 }
72
73 public String getFirstName() {
74 return firstName;
75 }
76
77 public void setFirstName(String firstName) {
78 this.firstName = firstName;
79 }
80
81 public String getLastName() {
82 return lastName;
83 }
84
85 public void setLastName(String lastName) {
86 this.lastName = lastName;
87 }
88
89 public String getEmail() {
90 return email;
91 }
92
93 public void setEmail(String email) {
94 this.email = email;
95 }
96
97 @Override
98 public boolean equals(Object that) {
99 return EqualsBuilder.reflectionEquals(this, that, "firstName", "lastName", "username", "password", "email");
100 }
101
102 @Override
103 public int hashCode() {
104 return HashCodeBuilder.reflectionHashCode(this, "firstName", "lastName", "username", "password", "email");
105 }
106
107 }
四、
时间： 2024-10-28 12:25:12