刚开始用spring mvc 做web开发时,经常会不知道如何合适绑定页面数据.用惯struts2的朋友更认为spring mvc 绑定数据不如struts2方便(本人最开始也是这么认为),经过一段时间的应用和测试,总结出以下几种情况,希望对刚接触spring mvc 的朋友有所帮助.

示例程序下载

查看spring源码可以看出spring支持转换的数据类型已经很多了.

org.springframework.beans.PropertyEditorRegistrySupport.java

  1. /**
  2. * Actually register the default editors for this registry instance.
  3. */
  4. private void doRegisterDefaultEditors() {
  5. this.defaultEditors = new HashMap<Class, PropertyEditor>(64);
  6. // Simple editors, without parameterization capabilities.
  7. // The JDK does not contain a default editor for any of these target types.
  8. this.defaultEditors.put(Charset.class, new CharsetEditor());
  9. this.defaultEditors.put(Class.class, new ClassEditor());
  10. this.defaultEditors.put(Class[].class, new ClassArrayEditor());
  11. this.defaultEditors.put(Currency.class, new CurrencyEditor());
  12. this.defaultEditors.put(File.class, new FileEditor());
  13. this.defaultEditors.put(InputStream.class, new InputStreamEditor());
  14. this.defaultEditors.put(Locale.class, new LocaleEditor());
  15. this.defaultEditors.put(Pattern.class, new PatternEditor());
  16. this.defaultEditors.put(Properties.class, new PropertiesEditor());
  17. this.defaultEditors.put(Resource[].class, new ResourceArrayPropertyEditor());
  18. this.defaultEditors.put(TimeZone.class, new TimeZoneEditor());
  19. this.defaultEditors.put(URI.class, new URIEditor());
  20. this.defaultEditors.put(URL.class, new URLEditor());
  21. // Default instances of collection editors.
  22. // Can be overridden by registering custom instances of those as custom editors.
  23. this.defaultEditors.put(Collection.class, new CustomCollectionEditor(Collection.class));
  24. this.defaultEditors.put(Set.class, new CustomCollectionEditor(Set.class));
  25. this.defaultEditors.put(SortedSet.class, new CustomCollectionEditor(SortedSet.class));
  26. this.defaultEditors.put(List.class, new CustomCollectionEditor(List.class));
  27. this.defaultEditors.put(SortedMap.class, new CustomMapEditor(SortedMap.class));
  28. // Default editors for primitive arrays.
  29. this.defaultEditors.put(byte[].class, new ByteArrayPropertyEditor());
  30. this.defaultEditors.put(char[].class, new CharArrayPropertyEditor());
  31. // The JDK does not contain a default editor for char!
  32. this.defaultEditors.put(char.class, new CharacterEditor(false));
  33. this.defaultEditors.put(Character.class, new CharacterEditor(true));
  34. // Spring's CustomBooleanEditor accepts more flag values than the JDK's default editor.
  35. this.defaultEditors.put(boolean.class, new CustomBooleanEditor(false));
  36. this.defaultEditors.put(Boolean.class, new CustomBooleanEditor(true));
  37. // The JDK does not contain default editors for number wrapper types!
  38. // Override JDK primitive number editors with our own CustomNumberEditor.
  39. this.defaultEditors.put(byte.class, new CustomNumberEditor(Byte.class, false));
  40. this.defaultEditors.put(Byte.class, new CustomNumberEditor(Byte.class, true));
  41. this.defaultEditors.put(short.class, new CustomNumberEditor(Short.class, false));
  42. this.defaultEditors.put(Short.class, new CustomNumberEditor(Short.class, true));
  43. this.defaultEditors.put(int.class, new CustomNumberEditor(Integer.class, false));
  44. this.defaultEditors.put(Integer.class, new CustomNumberEditor(Integer.class, true));
  45. this.defaultEditors.put(long.class, new CustomNumberEditor(Long.class, false));
  46. this.defaultEditors.put(Long.class, new CustomNumberEditor(Long.class, true));
  47. this.defaultEditors.put(float.class, new CustomNumberEditor(Float.class, false));
  48. this.defaultEditors.put(Float.class, new CustomNumberEditor(Float.class, true));
  49. this.defaultEditors.put(double.class, new CustomNumberEditor(Double.class, false));
  50. this.defaultEditors.put(Double.class, new CustomNumberEditor(Double.class, true));
  51. this.defaultEditors.put(BigDecimal.class, new CustomNumberEditor(BigDecimal.class, true));
  52. this.defaultEditors.put(BigInteger.class, new CustomNumberEditor(BigInteger.class, true));
  53. // Only register config value editors if explicitly requested.
  54. if (this.configValueEditorsActive) {
  55. StringArrayPropertyEditor sae = new StringArrayPropertyEditor();
  56. this.defaultEditors.put(String[].class, sae);
  57. this.defaultEditors.put(short[].class, sae);
  58. this.defaultEditors.put(int[].class, sae);
  59. this.defaultEditors.put(long[].class, sae);
  60. }
  61. }

/**
* Actually register the default editors for this registry instance.
*/
private void doRegisterDefaultEditors() {
this.defaultEditors = new HashMap<Class, PropertyEditor>(64);
// Simple editors, without parameterization capabilities.
// The JDK does not contain a default editor for any of these target types.
this.defaultEditors.put(Charset.class, new CharsetEditor());
this.defaultEditors.put(Class.class, new ClassEditor());
this.defaultEditors.put(Class[].class, new ClassArrayEditor());
this.defaultEditors.put(Currency.class, new CurrencyEditor());
this.defaultEditors.put(File.class, new FileEditor());
this.defaultEditors.put(InputStream.class, new InputStreamEditor());
this.defaultEditors.put(Locale.class, new LocaleEditor());
this.defaultEditors.put(Pattern.class, new PatternEditor());
this.defaultEditors.put(Properties.class, new PropertiesEditor());
this.defaultEditors.put(Resource[].class, new ResourceArrayPropertyEditor());
this.defaultEditors.put(TimeZone.class, new TimeZoneEditor());
this.defaultEditors.put(URI.class, new URIEditor());
this.defaultEditors.put(URL.class, new URLEditor());
// Default instances of collection editors.
// Can be overridden by registering custom instances of those as custom editors.
this.defaultEditors.put(Collection.class, new CustomCollectionEditor(Collection.class));
this.defaultEditors.put(Set.class, new CustomCollectionEditor(Set.class));
this.defaultEditors.put(SortedSet.class, new CustomCollectionEditor(SortedSet.class));
this.defaultEditors.put(List.class, new CustomCollectionEditor(List.class));
this.defaultEditors.put(SortedMap.class, new CustomMapEditor(SortedMap.class));
// Default editors for primitive arrays.
this.defaultEditors.put(byte[].class, new ByteArrayPropertyEditor());
this.defaultEditors.put(char[].class, new CharArrayPropertyEditor());
// The JDK does not contain a default editor for char!
this.defaultEditors.put(char.class, new CharacterEditor(false));
this.defaultEditors.put(Character.class, new CharacterEditor(true));
// Spring's CustomBooleanEditor accepts more flag values than the JDK's default editor.
this.defaultEditors.put(boolean.class, new CustomBooleanEditor(false));
this.defaultEditors.put(Boolean.class, new CustomBooleanEditor(true));
// The JDK does not contain default editors for number wrapper types!
// Override JDK primitive number editors with our own CustomNumberEditor.
this.defaultEditors.put(byte.class, new CustomNumberEditor(Byte.class, false));
this.defaultEditors.put(Byte.class, new CustomNumberEditor(Byte.class, true));
this.defaultEditors.put(short.class, new CustomNumberEditor(Short.class, false));
this.defaultEditors.put(Short.class, new CustomNumberEditor(Short.class, true));
this.defaultEditors.put(int.class, new CustomNumberEditor(Integer.class, false));
this.defaultEditors.put(Integer.class, new CustomNumberEditor(Integer.class, true));
this.defaultEditors.put(long.class, new CustomNumberEditor(Long.class, false));
this.defaultEditors.put(Long.class, new CustomNumberEditor(Long.class, true));
this.defaultEditors.put(float.class, new CustomNumberEditor(Float.class, false));
this.defaultEditors.put(Float.class, new CustomNumberEditor(Float.class, true));
this.defaultEditors.put(double.class, new CustomNumberEditor(Double.class, false));
this.defaultEditors.put(Double.class, new CustomNumberEditor(Double.class, true));
this.defaultEditors.put(BigDecimal.class, new CustomNumberEditor(BigDecimal.class, true));
this.defaultEditors.put(BigInteger.class, new CustomNumberEditor(BigInteger.class, true));
// Only register config value editors if explicitly requested.
if (this.configValueEditorsActive) {
StringArrayPropertyEditor sae = new StringArrayPropertyEditor();
this.defaultEditors.put(String[].class, sae);
this.defaultEditors.put(short[].class, sae);
this.defaultEditors.put(int[].class, sae);
this.defaultEditors.put(long[].class, sae);
}
}

1.基本数据类型

很简单,该怎么写就怎么写.

controller代码

  1. @RequestMapping
  2. public void test1(String name, Integer age, Double income, Boolean isMarried, String[] interests)
  3. {
  4. System.out.println("简单数据类型绑定=========");
  5. System.out.println("名字:" + name);
  6. System.out.println("年龄:" + age);
  7. System.out.println("收入:" + income);
  8. System.out.println("已结婚:" + isMarried);
  9. System.out.println("兴趣:");
  10. for (String interest : interests)
  11. {
  12. System.out.println(interest);
  13. }
  14. System.out.println("====================");
  15. }

@RequestMapping
public void test1(String name, Integer age, Double income, Boolean isMarried, String[] interests)
{
System.out.println("简单数据类型绑定=========");
System.out.println("名字:" + name);
System.out.println("年龄:" + age);
System.out.println("收入:" + income);
System.out.println("已结婚:" + isMarried);
System.out.println("兴趣:");
for (String interest : interests)
{
System.out.println(interest);
}
System.out.println("====================");
}

jsp代码

  1. <form action="test1.do" method="post">
  2. <div class="f_left">姓名:</div>
  3. <div class="f_left"><input name="name" value="张三"/></div>
  4. <div class="clear"></div>
  5. <div class="f_left">年龄:</div>
  6. <div class="f_left"><input name="age" value="20"/></div>
  7. <div class="clear"></div>
  8. <div class="f_left">收入:</div>
  9. <div class="f_left"><input name="income" value="100000"/></div>
  10. <div class="clear"></div>
  11. <div class="f_left">结婚:</div>
  12. <div class="f_left">
  13. <input type="radio" name="isMarried" value="true" checked="checked"/>是
  14. <input type="radio" name="isMarried" value="false"/>否</div>
  15. <div class="clear"></div>
  16. <div class="f_left">兴趣:</div>
  17. <div class="f_left">
  18. <input type="checkbox" name="interests" value="听歌" checked="checked"/>听歌
  19. <input type="checkbox" name="interests" value="书法" checked="checked"/>书法
  20. <input type="checkbox" name="interests" value="看电影" checked="checked"/>看电影
  21. </div>
  22. <div class="clear"></div>
  23. <div><input type="submit" value="提交表单"/></div>
  24. </form>

<form action="test1.do" method="post">
<div class="f_left">姓名:</div>
<div class="f_left"><input name="name" value="张三"/></div>
<div class="clear"></div>
<div class="f_left">年龄:</div>
<div class="f_left"><input name="age" value="20"/></div>
<div class="clear"></div>
<div class="f_left">收入:</div>
<div class="f_left"><input name="income" value="100000"/></div>
<div class="clear"></div>
<div class="f_left">结婚:</div>
<div class="f_left">
<input type="radio" name="isMarried" value="true" checked="checked"/>是
<input type="radio" name="isMarried" value="false"/>否</div>
<div class="clear"></div>
<div class="f_left">兴趣:</div>
<div class="f_left">
<input type="checkbox" name="interests" value="听歌" checked="checked"/>听歌
<input type="checkbox" name="interests" value="书法" checked="checked"/>书法
<input type="checkbox" name="interests" value="看电影" checked="checked"/>看电影
</div>
<div class="clear"></div>
<div><input type="submit" value="提交表单"/></div>
</form>

2.简单对象类型

与基本类型相拟,只不过绑定到对象上更加简洁.(类拟struts的ActionForm)

controller代码

  1. @RequestMapping
  2. public void test2(User user)
  3. {
  4. System.out.println("简单对象类型绑定=========");
  5. System.out.println("名字:" + user.getName());
  6. System.out.println("年龄:" + user.getAge());
  7. System.out.println("收入:" + user.getIncome());
  8. System.out.println("已结婚:" + user.getIsMarried());
  9. System.out.println("========================");
  10. }

@RequestMapping
public void test2(User user)
{
System.out.println("简单对象类型绑定=========");
System.out.println("名字:" + user.getName());
System.out.println("年龄:" + user.getAge());
System.out.println("收入:" + user.getIncome());
System.out.println("已结婚:" + user.getIsMarried());
System.out.println("========================");
} 

user代码

  1. public class User {
  2. private String name;
  3. private Integer age;
  4. private Boolean isMarried;
  5. private Double income;
  6. private String[] interests;
  7. public String getName() {
  8. return name;
  9. }
  10. public void setName(String name) {
  11. this.name = name;
  12. }
  13. public Integer getAge() {
  14. return age;
  15. }
  16. public void setAge(Integer age) {
  17. this.age = age;
  18. }
  19. public Boolean getIsMarried() {
  20. return isMarried;
  21. }
  22. public void setIsMarried(Boolean isMarried) {
  23. this.isMarried = isMarried;
  24. }
  25. public Double getIncome() {
  26. return income;
  27. }
  28. public void setIncome(Double income) {
  29. this.income = income;
  30. }
  31. public String[] getInterests() {
  32. return interests;
  33. }
  34. public void setInterests(String[] interests) {
  35. this.interests = interests;
  36. }
  37. }

public class User {
private String name;
private Integer age;
private Boolean isMarried;
private Double income;
private String[] interests;

public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Boolean getIsMarried() {
return isMarried;
}
public void setIsMarried(Boolean isMarried) {
this.isMarried = isMarried;
}
public Double getIncome() {
return income;
}
public void setIncome(Double income) {
this.income = income;
}
public String[] getInterests() {
return interests;
}
public void setInterests(String[] interests) {
this.interests = interests;
}
}

jsp代码

  1. <form action="test2.do" method="post">
  2. <div class="f_left">姓名:</div>
  3. <div class="f_left"><input name="name" value="lxf"/></div>
  4. <div class="clear"></div>
  5. <div class="f_left">年龄:</div>
  6. <div class="f_left"><input name="age" value="20"/></div>
  7. <div class="clear"></div>
  8. <div class="f_left">收入:</div>
  9. <div class="f_left"><input name="income" value="100000"/></div>
  10. <div class="clear"></div>
  11. <div class="f_left">结婚:</div>
  12. <div class="f_left">
  13. <input type="radio" name="isMarried" value="true" checked="checked"/>是
  14. <input type="radio" name="isMarried" value="false"/>否</div>
  15. <div class="clear"></div>
  16. <div class="f_left">兴趣:</div>
  17. <div class="f_left">
  18. <input type="checkbox" name="interests" value="听歌" checked="checked"/>听歌
  19. <input type="checkbox" name="interests" value="书法" checked="checked"/>书法
  20. <input type="checkbox" name="interests" value="看电影" checked="checked"/>看电影
  21. </div>
  22. <div class="clear"></div>
  23. <div><input type="submit" value="提交表单"/></div>
  24. </form>

<form action="test2.do" method="post">
<div class="f_left">姓名:</div>
<div class="f_left"><input name="name" value="lxf"/></div>
<div class="clear"></div>
<div class="f_left">年龄:</div>
<div class="f_left"><input name="age" value="20"/></div>
<div class="clear"></div>
<div class="f_left">收入:</div>
<div class="f_left"><input name="income" value="100000"/></div>
<div class="clear"></div>
<div class="f_left">结婚:</div>
<div class="f_left">
<input type="radio" name="isMarried" value="true" checked="checked"/>是
<input type="radio" name="isMarried" value="false"/>否</div>
<div class="clear"></div>
<div class="f_left">兴趣:</div>
<div class="f_left">
<input type="checkbox" name="interests" value="听歌" checked="checked"/>听歌
<input type="checkbox" name="interests" value="书法" checked="checked"/>书法
<input type="checkbox" name="interests" value="看电影" checked="checked"/>看电影
</div>
<div class="clear"></div>
<div><input type="submit" value="提交表单"/></div>
</form> 

3.List类型绑定

网上很多人都给不出答案,关键在于,List需要绑定在对象(ActionForm),直接写在request-mapping函数的参数是不行的,更重要的一点是要创建对象(ArrayList).

controller代码

  1. @RequestMapping
  2. public void test3(Club club)
  3. {
  4. System.out.println("list类型绑定=========");
  5. System.out.println("会员:");
  6. for (User user : club.getUsers())
  7. {
  8. System.out.println(user.getName());
  9. }
  10. System.out.println("========================");
  11. }

@RequestMapping
public void test3(Club club)
{
System.out.println("list类型绑定=========");
System.out.println("会员:");
for (User user : club.getUsers())
{
System.out.println(user.getName());
}
System.out.println("========================");
}

Club代码

  1. public class Club {
  2. private List<User> users = new ArrayList<User>();
  3. public List<User> getUsers() {
  4. return users;
  5. }
  6. public void setUsers(List<User> users) {
  7. this.users = users;
  8. }
  9. }

public class Club {
private List<User> users = new ArrayList<User>();

public List<User> getUsers() {
return users;
}

public void setUsers(List<User> users) {
this.users = users;
}
}

jsp代码

  1. <form action="test3.do" method="post">
  2. <div class="f_left">会员1号:</div>
  3. <div class="f_left">
  4. <input name="users[0].name" value="张三"/>
  5. </div>
  6. <div class="clear"></div>
  7. <div class="f_left">会员2号:</div>
  8. <div class="f_left">
  9. <input name="users[1].name" value="李四"/>
  10. </div>
  11. <div class="clear"></div>
  12. <div class="f_left">会员3号:</div>
  13. <div class="f_left">
  14. <input name="users[2].name" value="王五"/>
  15. </div>
  16. <div class="clear"></div>
  17. <div><input type="submit" value="提交表单"/></div>
  18. </form>

<form action="test3.do" method="post">
<div class="f_left">会员1号:</div>
<div class="f_left">
<input name="users[0].name" value="张三"/>
</div>
<div class="clear"></div>
<div class="f_left">会员2号:</div>
<div class="f_left">
<input name="users[1].name" value="李四"/>
</div>
<div class="clear"></div>
<div class="f_left">会员3号:</div>
<div class="f_left">
<input name="users[2].name" value="王五"/>
</div>
<div class="clear"></div>
<div><input type="submit" value="提交表单"/></div>
</form>

4.Set类型绑定

与List类型相似,经测试表明,绑定Set数据时,必须先在Set对象中Add相应的数量的模型对象.

controller代码

  1. @RequestMapping
  2. public void test4(Club2 club)
  3. {
  4. System.out.println("set类型绑定=========");
  5. System.out.println("会员:");
  6. for (User user : club.getUsers())
  7. {
  8. System.out.println(user.getName());
  9. }
  10. System.out.println("========================");
  11. }

@RequestMapping
public void test4(Club2 club)
{
System.out.println("set类型绑定=========");
System.out.println("会员:");
for (User user : club.getUsers())
{
System.out.println(user.getName());
}
System.out.println("========================");
}
Club2代码

  1. public class Club2 {
  2. private Set<User> users = new LinkedHashSet<User>();
  3. public Club2() {
  4. users.add(new User());
  5. users.add(new User());
  6. users.add(new User());
  7. }
  8. public Set<User> getUsers() {
  9. return users;
  10. }
  11. public void setUsers(Set<User> users) {
  12. this.users = users;
  13. }
  14. }

public class Club2 {
private Set<User> users = new LinkedHashSet<User>();

public Club2() {
users.add(new User());
users.add(new User());
users.add(new User());
}

public Set<User> getUsers() {
return users;
}
public void setUsers(Set<User> users) {
this.users = users;
}
}

jsp代码

  1. <form action="test4.do" method="post">
  2. <div class="f_left">会员1号:</div>
  3. <div class="f_left">
  4. <input name="users[0].name" value="张三"/>
  5. </div>
  6. <div class="clear"></div>
  7. <div class="f_left">会员2号:</div>
  8. <div class="f_left">
  9. <input name="users[1].name" value="李四"/>
  10. </div>
  11. <div class="clear"></div>
  12. <div class="f_left">会员3号:</div>
  13. <div class="f_left">
  14. <input name="users[2].name" value="王五"/>
  15. </div>
  16. <div class="clear"></div>
  17. <div><input type="submit" value="提交表单"/></div>
  18. </form>

<form action="test4.do" method="post">
<div class="f_left">会员1号:</div>
<div class="f_left">
<input name="users[0].name" value="张三"/>
</div>
<div class="clear"></div>
<div class="f_left">会员2号:</div>
<div class="f_left">
<input name="users[1].name" value="李四"/>
</div>
<div class="clear"></div>
<div class="f_left">会员3号:</div>
<div class="f_left">
<input name="users[2].name" value="王五"/>
</div>
<div class="clear"></div>
<div><input type="submit" value="提交表单"/></div>
</form> 

5.Map类型绑定

最灵活的一种方式,可无限绑定未定义的参数,注意必须绑定在对象下(ActionForm).

controller代码

  1. @RequestMapping
  2. public void test5(UserForm userForm)
  3. {
  4. System.out.println("Map类型绑定=========");
  5. System.out.println("名字:" + userForm.getUser().get("name"));
  6. System.out.println("年龄:" + userForm.getUser().get("age"));
  7. System.out.println("收入:" + userForm.getUser().get("income"));
  8. System.out.println("已结婚:" + userForm.getUser().get("isMarried"));
  9. System.out.println("========================");
  10. }

@RequestMapping
public void test5(UserForm userForm)
{
System.out.println("Map类型绑定=========");
System.out.println("名字:" + userForm.getUser().get("name"));
System.out.println("年龄:" + userForm.getUser().get("age"));
System.out.println("收入:" + userForm.getUser().get("income"));
System.out.println("已结婚:" + userForm.getUser().get("isMarried"));
System.out.println("========================");
} 

UserForm.java代码

  1. public class UserForm {
  2. private Map<String, String> userMap = new LinkedHashMap<String, String>();
  3. private User user = new User();
  4. public Map<String, String> getUserMap() {
  5. return userMap;
  6. }
  7. public void setUserMap(Map<String, String> userMap) {
  8. this.userMap = userMap;
  9. }
  10. public User getUser() {
  11. return user;
  12. }
  13. public void setUser(User user) {
  14. this.user = user;
  15. }
  16. }

public class UserForm {
private Map<String, String> userMap = new LinkedHashMap<String, String>();
private User user = new User();

public Map<String, String> getUserMap() {
return userMap;
}
public void setUserMap(Map<String, String> userMap) {
this.userMap = userMap;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}

} 

jsp代码

  1. <form action="test5.do" method="post">
  2. <div class="f_left">姓名:</div>
  3. <div class="f_left"><input name="user['name']" value="张三"/></div>
  4. <div class="clear"></div>
  5. <div class="f_left">年龄:</div>
  6. <div class="f_left"><input name="user['age']" value="20"/></div>
  7. <div class="clear"></div>
  8. <div class="f_left">收入:</div>
  9. <div class="f_left"><input name="user['income']" value="100000"/></div>
  10. <div class="clear"></div>
  11. <div class="f_left">结婚:</div>
  12. <div class="f_left">
  13. <input type="radio" name="user['isMarried']" value="true" checked="checked"/>是
  14. <input type="radio" name="user['isMarried']" value="false"/>否</div>
  15. <div class="clear"></div>
  16. <div><input type="submit" value="提交表单"/></div>
  17. </form>

<form action="test5.do" method="post">
<div class="f_left">姓名:</div>
<div class="f_left"><input name="user['name']" value="张三"/></div>
<div class="clear"></div>
<div class="f_left">年龄:</div>
<div class="f_left"><input name="user['age']" value="20"/></div>
<div class="clear"></div>
<div class="f_left">收入:</div>
<div class="f_left"><input name="user['income']" value="100000"/></div>
<div class="clear"></div>
<div class="f_left">结婚:</div>
<div class="f_left">
<input type="radio" name="user['isMarried']" value="true" checked="checked"/>是
<input type="radio" name="user['isMarried']" value="false"/>否</div>
<div class="clear"></div>
<div><input type="submit" value="提交表单"/></div>
</form>

6.复合类型绑定

controller代码

  1. @RequestMapping
  2. public void test6(UserForm userForm)
  3. {
  4. System.out.println("复合类型绑定=========");
  5. System.out.println("名字:" + userForm.getUser().getName());
  6. System.out.println("年龄:" + userForm.getUser().getAge());
  7. System.out.println("收入:" + userForm.getUser().getIncome());
  8. System.out.println("已结婚:" + userForm.getUser().getIsMarried());
  9. System.out.println("========================");
  10. }

@RequestMapping
public void test6(UserForm userForm)
{
System.out.println("复合类型绑定=========");
System.out.println("名字:" + userForm.getUser().getName());
System.out.println("年龄:" + userForm.getUser().getAge());
System.out.println("收入:" + userForm.getUser().getIncome());
System.out.println("已结婚:" + userForm.getUser().getIsMarried());
System.out.println("========================");
} 

UserForm代码

  1. public class UserForm {
  2. private Map<String, String> userMap = new LinkedHashMap<String, String>();
  3. private User user = new User();
  4. public Map<String, String> getUserMap() {
  5. return userMap;
  6. }
  7. public void setUserMap(Map<String, String> userMap) {
  8. this.userMap = userMap;
  9. }
  10. public User getUser() {
  11. return user;
  12. }
  13. public void setUser(User user) {
  14. this.user = user;
  15. }
  16. }

public class UserForm {
private Map<String, String> userMap = new LinkedHashMap<String, String>();
private User user = new User();

public Map<String, String> getUserMap() {
return userMap;
}
public void setUserMap(Map<String, String> userMap) {
this.userMap = userMap;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}

}

jsp代码

  1. <form action="test6.do" method="post">
  2. <div class="f_left">姓名:</div>
  3. <div class="f_left"><input name="user.name" value="张三"/></div>
  4. <div class="clear"></div>
  5. <div class="f_left">年龄:</div>
  6. <div class="f_left"><input name="user.age" value="20"/></div>
  7. <div class="clear"></div>
  8. <div class="f_left">收入:</div>
  9. <div class="f_left"><input name="user.income" value="100000"/></div>
  10. <div class="clear"></div>
  11. <div class="f_left">结婚:</div>
  12. <div class="f_left">
  13. <input type="radio" name="user.isMarried" value="true" checked="checked"/>是
  14. <input type="radio" name="user.isMarried" value="false"/>否</div>
  15. <div class="clear"></div>
  16. <div><input type="submit" value="提交表单"/></div>
  17. </form>

<form action="test6.do" method="post">
<div class="f_left">姓名:</div>
<div class="f_left"><input name="user.name" value="张三"/></div>
<div class="clear"></div>
<div class="f_left">年龄:</div>
<div class="f_left"><input name="user.age" value="20"/></div>
<div class="clear"></div>
<div class="f_left">收入:</div>
<div class="f_left"><input name="user.income" value="100000"/></div>
<div class="clear"></div>
<div class="f_left">结婚:</div>
<div class="f_left">
<input type="radio" name="user.isMarried" value="true" checked="checked"/>是
<input type="radio" name="user.isMarried" value="false"/>否</div>
<div class="clear"></div>
<div><input type="submit" value="提交表单"/></div>
</form>

转自 http://blog.csdn.net/lxf9601/article/details/5925810

Spring MVC数据绑定大全 .的更多相关文章

  1. Spring MVC—数据绑定机制，数据转换,数据格式化配置，数据校验

    Spring MVC数据绑定机制 数据转换 Spring MVC处理JSON 数据格式化配置使用 数据校验 数据校验 Spring MVC数据绑定机制 Spring MVC解析JSON格式的数据: 步 ...

  2. spring mvc 数据绑定

    1.spring mvc 默认提供的数据绑定类 private List<HandlerMethodArgumentResolver> getDefaultArgumentResolver ...

  3. Spring MVC 数据绑定流程分析

    1.    数据绑定流程原理★ ①   Spring MVC 主框架将 ServletRequest  对象及目标方法的入参实例传递给 WebDataBinderFactory 实例,以创建 Data ...

  4. Spring MVC数据绑定（一）

    1.数据绑定介绍 在执行程序时,Spring MVC会根据客户端请求参数的不同,将请求消息中的信息以一定的方式转换并绑定到控制器类的方法参数中.这种将请求消息数据与后台方法参数建立连接的过程就是Spr ...

  5. spring mvc 数据绑定总结

    spring mvc 做web开发时,经常会不知道如何合适绑定页面数据.用惯struts2的朋友更认为spring mvc 绑定数据不如struts2方便(本人最开始也是这么认为),经过一段时间的应用 ...

  6. Spring MVC 数据绑定 （四）

    完整的项目案例: springmvc.zip 目录 实例 项目结构路径: 一.配置web.xml <?xml version="1.0" encoding="UTF ...

  7. Spring MVC数据绑定（二）

    之前学习了SpringMVC数据绑定的基本知识和简单数据绑定以及POJO类型数据的绑定.接下来总结剩下的一些数据类型的绑定 1. 绑定包装POJO 所谓的包装POJO,就是在一个POJO中包含另一个简 ...

  8. Spring MVC 数据绑定（四）

        Spring支持多种形式的类型绑定,包括: 1.基本数据类型.String和String[] 2.简单对象类型 3.List类型 4.Set类型 5.Map类型 6.复合数据类型     接下 ...

  9. Spring MVC数据绑定入门总结

    1.基本类型 基本类型参数不可为空 正例:http://localhost:8080/demo/he?id=2 反例:http://localhost:8080/demo/he?id=(报400错误) ...

随机推荐

  1. 两个offer如何做选择？年薪20万vs年薪15万

    (附注:本文转载于:http://www.eoeandroid.com/thread-296678-1-1.html) 前些天和一个年轻的朋友谈跳槽.朋友说她需要在两个offer里面做选择.一个是年薪 ...

  2. 修改mysql root的密码

    use mysql:update user set Password = Password('newPwd') where user='root';//更改root用户的密码flush privile ...

  3. mysql执行计划图

  4. 剑指offer 面试40题

    面试40题: 题目:最小的k个数 题:输入n个整数,找出其中最小的K个数.例如输入4,5,1,6,2,7,3,8这8个数字,则最小的4个数字是1,2,3,4,. 解题代码一: # -*- coding ...

  5. Python之异常处理（Day27）

    一.错误和异常 part1: 1.语法错误(这种错误,根本过不了python解释器的语法检测,必须在程序执行前就改正) #语法错误示范一 if #语法错误示范二 def test: pass #语法错 ...

  6. VM上安装苹果虚拟机

    用了太久的Windows系统,看着Mac OS X的惊艳,相信很多朋友也和我一样,总想着能把玩一把Mac OS X系统吧?如果只是为了体验一下Mac OS X系统而购买一套Mac电脑,那是土豪做的事. ...

  7. Linux图像系统框架-理解X11与Qt的层次结构

    转:http://blog.csdn.net/kjfureone/article/details/52848550 1. 前言 图形子系统是linux系统中比较复杂的子系统之一:对下,它要管理形态各异 ...

  8. python中类（class）和实例(instance)

    面向对象最重要的概念就是类(Class)和实例(Instance),必须牢记类是抽象的模板,比如Student类,而实例是根据类创建出来的一个个具体的“对象”,每个对象都拥有相同的方法,但各自的数据可 ...

  9. no xxx find in java.library.path

    JAVA系统运行时候load native lib时候会遇到下面错误,如 java.lang.UnsatisfiedLinkError: no JSTAF in java.library.path这可 ...

  10. 快乐学习 Ionic Framework+PhoneGap 手册1-4 {登录页面}

    编程的快乐和乐趣,来自于能成功运行程序并运用到项目中 有了面板然后加个登录页面,请看效果图和代码 Index HTML Code <!DOCTYPE html> <html ng-a ...